Home / 131,286.64-181,182.36-74,706.16

Finding the Fourth Proportional to 131,286.64, 181,182.36 and 74,706.16

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Solution

The fourth proportional to 131,286.64, 181,182.36 and 74,706.16 is: 103,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,286.64 : 181,182.36 = 74,706.16 : x
  2. Step 2: Convert to fraction form
    131,286.64/181,182.36 = 74,706.16/x
  3. Step 3: Cross multiply
    131,286.64x = 181,182.36 × 74,706.16
  4. Step 4: Simplify right side
    131,286.64x = 13,535,438,375.34
  5. Step 5: Solve for x
    x = 13,535,438,375.34/131,286.64
  6. Step 6: Final answer
    x = 103,098.37

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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.