Home / 121,904.46-182,929.32-54,431.24

Finding the Fourth Proportional to 121,904.46, 182,929.32 and 54,431.24

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Solution

The fourth proportional to 121,904.46, 182,929.32 and 54,431.24 is: 81,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,904.46 : 182,929.32 = 54,431.24 : x
  2. Step 2: Convert to fraction form
    121,904.46/182,929.32 = 54,431.24/x
  3. Step 3: Cross multiply
    121,904.46x = 182,929.32 × 54,431.24
  4. Step 4: Simplify right side
    121,904.46x = 9,957,068,805.31
  5. Step 5: Solve for x
    x = 9,957,068,805.31/121,904.46
  6. Step 6: Final answer
    x = 81,679.28

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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.