Home / 131,872.28-181,983.47-71,444.40

Finding the Fourth Proportional to 131,872.28, 181,983.47 and 71,444.40

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Solution

The fourth proportional to 131,872.28, 181,983.47 and 71,444.40 is: 98,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,872.28 : 181,983.47 = 71,444.40 : x
  2. Step 2: Convert to fraction form
    131,872.28/181,983.47 = 71,444.40/x
  3. Step 3: Cross multiply
    131,872.28x = 181,983.47 × 71,444.40
  4. Step 4: Simplify right side
    131,872.28x = 13,001,699,466.85
  5. Step 5: Solve for x
    x = 13,001,699,466.85/131,872.28
  6. Step 6: Final answer
    x = 98,593.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.