Home / 132,724.98-183,154-75,356.78

Finding the Fourth Proportional to 132,724.98, 183,154 and 75,356.78

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Solution

The fourth proportional to 132,724.98, 183,154 and 75,356.78 is: 103,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,724.98 : 183,154 = 75,356.78 : x
  2. Step 2: Convert to fraction form
    132,724.98/183,154 = 75,356.78/x
  3. Step 3: Cross multiply
    132,724.98x = 183,154 × 75,356.78
  4. Step 4: Simplify right side
    132,724.98x = 13,801,895,684.12
  5. Step 5: Solve for x
    x = 13,801,895,684.12/132,724.98
  6. Step 6: Final answer
    x = 103,988.68

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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.