Home / 129,637.10-194,127.60-123,732.20

Finding the Fourth Proportional to 129,637.10, 194,127.60 and 123,732.20

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Solution

The fourth proportional to 129,637.10, 194,127.60 and 123,732.20 is: 185,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637.10 : 194,127.60 = 123,732.20 : x
  2. Step 2: Convert to fraction form
    129,637.10/194,127.60 = 123,732.20/x
  3. Step 3: Cross multiply
    129,637.10x = 194,127.60 × 123,732.20
  4. Step 4: Simplify right side
    129,637.10x = 24,019,835,028.72
  5. Step 5: Solve for x
    x = 24,019,835,028.72/129,637.10
  6. Step 6: Final answer
    x = 185,285.19

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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.