Home / 126,647.38-189,783.08-70,410.13

Finding the Fourth Proportional to 126,647.38, 189,783.08 and 70,410.13

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Solution

The fourth proportional to 126,647.38, 189,783.08 and 70,410.13 is: 105,510.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,647.38 : 189,783.08 = 70,410.13 : x
  2. Step 2: Convert to fraction form
    126,647.38/189,783.08 = 70,410.13/x
  3. Step 3: Cross multiply
    126,647.38x = 189,783.08 × 70,410.13
  4. Step 4: Simplify right side
    126,647.38x = 13,362,650,772.13
  5. Step 5: Solve for x
    x = 13,362,650,772.13/126,647.38
  6. Step 6: Final answer
    x = 105,510.68

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1.5x scale

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.