Home / 99,766.83-137,679.03-54,445.17

Finding the Fourth Proportional to 99,766.83, 137,679.03 and 54,445.17

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Solution

The fourth proportional to 99,766.83, 137,679.03 and 54,445.17 is: 75,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,766.83 : 137,679.03 = 54,445.17 : x
  2. Step 2: Convert to fraction form
    99,766.83/137,679.03 = 54,445.17/x
  3. Step 3: Cross multiply
    99,766.83x = 137,679.03 × 54,445.17
  4. Step 4: Simplify right side
    99,766.83x = 7,495,958,193.79
  5. Step 5: Solve for x
    x = 7,495,958,193.79/99,766.83
  6. Step 6: Final answer
    x = 75,134.77

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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.