Home / 137,502.60-205,845.48-74,983.56

Finding the Fourth Proportional to 137,502.60, 205,845.48 and 74,983.56

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Solution

The fourth proportional to 137,502.60, 205,845.48 and 74,983.56 is: 112,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,502.60 : 205,845.48 = 74,983.56 : x
  2. Step 2: Convert to fraction form
    137,502.60/205,845.48 = 74,983.56/x
  3. Step 3: Cross multiply
    137,502.60x = 205,845.48 × 74,983.56
  4. Step 4: Simplify right side
    137,502.60x = 15,435,026,900.31
  5. Step 5: Solve for x
    x = 15,435,026,900.31/137,502.60
  6. Step 6: Final answer
    x = 112,252.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.