Home / 129,246.23-178,385.39-83,860.52

Finding the Fourth Proportional to 129,246.23, 178,385.39 and 83,860.52

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Solution

The fourth proportional to 129,246.23, 178,385.39 and 83,860.52 is: 115,744.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,246.23 : 178,385.39 = 83,860.52 : x
  2. Step 2: Convert to fraction form
    129,246.23/178,385.39 = 83,860.52/x
  3. Step 3: Cross multiply
    129,246.23x = 178,385.39 × 83,860.52
  4. Step 4: Simplify right side
    129,246.23x = 14,959,490,569.05
  5. Step 5: Solve for x
    x = 14,959,490,569.05/129,246.23
  6. Step 6: Final answer
    x = 115,744.11

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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.