Home / 126,900.74-190,344.09-42,652.19

Finding the Fourth Proportional to 126,900.74, 190,344.09 and 42,652.19

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Solution

The fourth proportional to 126,900.74, 190,344.09 and 42,652.19 is: 63,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,900.74 : 190,344.09 = 42,652.19 : x
  2. Step 2: Convert to fraction form
    126,900.74/190,344.09 = 42,652.19/x
  3. Step 3: Cross multiply
    126,900.74x = 190,344.09 × 42,652.19
  4. Step 4: Simplify right side
    126,900.74x = 8,118,591,340.34
  5. Step 5: Solve for x
    x = 8,118,591,340.34/126,900.74
  6. Step 6: Final answer
    x = 63,975.92

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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.