Home / 99,151.18-136,823.04-57,770.74

Finding the Fourth Proportional to 99,151.18, 136,823.04 and 57,770.74

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Solution

The fourth proportional to 99,151.18, 136,823.04 and 57,770.74 is: 79,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,151.18 : 136,823.04 = 57,770.74 : x
  2. Step 2: Convert to fraction form
    99,151.18/136,823.04 = 57,770.74/x
  3. Step 3: Cross multiply
    99,151.18x = 136,823.04 × 57,770.74
  4. Step 4: Simplify right side
    99,151.18x = 7,904,368,269.85
  5. Step 5: Solve for x
    x = 7,904,368,269.85/99,151.18
  6. Step 6: Final answer
    x = 79,720.37

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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.