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Finding the Fourth Proportional to 125,752.80, 173,610.60 and 83,368.72

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Solution

The fourth proportional to 125,752.80, 173,610.60 and 83,368.72 is: 115,096.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,752.80 : 173,610.60 = 83,368.72 : x
  2. Step 2: Convert to fraction form
    125,752.80/173,610.60 = 83,368.72/x
  3. Step 3: Cross multiply
    125,752.80x = 173,610.60 × 83,368.72
  4. Step 4: Simplify right side
    125,752.80x = 14,473,693,500.43
  5. Step 5: Solve for x
    x = 14,473,693,500.43/125,752.80
  6. Step 6: Final answer
    x = 115,096.39

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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.