Home / 131,711.46-181,761.81-71,282.10

Finding the Fourth Proportional to 131,711.46, 181,761.81 and 71,282.10

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Solution

The fourth proportional to 131,711.46, 181,761.81 and 71,282.10 is: 98,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,711.46 : 181,761.81 = 71,282.10 : x
  2. Step 2: Convert to fraction form
    131,711.46/181,761.81 = 71,282.10/x
  3. Step 3: Cross multiply
    131,711.46x = 181,761.81 × 71,282.10
  4. Step 4: Simplify right side
    131,711.46x = 12,956,363,516.60
  5. Step 5: Solve for x
    x = 12,956,363,516.60/131,711.46
  6. Step 6: Final answer
    x = 98,369.30

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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.