Home / 131,760.17-181,780.10-86,463.35

Finding the Fourth Proportional to 131,760.17, 181,780.10 and 86,463.35

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Solution

The fourth proportional to 131,760.17, 181,780.10 and 86,463.35 is: 119,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,760.17 : 181,780.10 = 86,463.35 : x
  2. Step 2: Convert to fraction form
    131,760.17/181,780.10 = 86,463.35/x
  3. Step 3: Cross multiply
    131,760.17x = 181,780.10 × 86,463.35
  4. Step 4: Simplify right side
    131,760.17x = 15,717,316,074.03
  5. Step 5: Solve for x
    x = 15,717,316,074.03/131,760.17
  6. Step 6: Final answer
    x = 119,287.31

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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.