Home / 131,528.60-181,505.78-74,167.40

Finding the Fourth Proportional to 131,528.60, 181,505.78 and 74,167.40

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Solution

The fourth proportional to 131,528.60, 181,505.78 and 74,167.40 is: 102,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,528.60 : 181,505.78 = 74,167.40 : x
  2. Step 2: Convert to fraction form
    131,528.60/181,505.78 = 74,167.40/x
  3. Step 3: Cross multiply
    131,528.60x = 181,505.78 × 74,167.40
  4. Step 4: Simplify right side
    131,528.60x = 13,461,811,787.57
  5. Step 5: Solve for x
    x = 13,461,811,787.57/131,528.60
  6. Step 6: Final answer
    x = 102,348.93

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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.