Home / 126,368,126.80-189,552,190.20-103,409,875.60

Finding the Fourth Proportional to 126,368,126.80, 189,552,190.20 and 103,409,875.60

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Solution

The fourth proportional to 126,368,126.80, 189,552,190.20 and 103,409,875.60 is: 155,114,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,368,126.80 : 189,552,190.20 = 103,409,875.60 : x
  2. Step 2: Convert to fraction form
    126,368,126.80/189,552,190.20 = 103,409,875.60/x
  3. Step 3: Cross multiply
    126,368,126.80x = 189,552,190.20 × 103,409,875.60
  4. Step 4: Simplify right side
    126,368,126.80x = 19,601,568,408,289,536
  5. Step 5: Solve for x
    x = 19,601,568,408,289,536/126,368,126.80
  6. Step 6: Final answer
    x = 155,114,813.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.