Home / 99,235.53-136,951.16-56,793.15

Finding the Fourth Proportional to 99,235.53, 136,951.16 and 56,793.15

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Solution

The fourth proportional to 99,235.53, 136,951.16 and 56,793.15 is: 78,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,235.53 : 136,951.16 = 56,793.15 : x
  2. Step 2: Convert to fraction form
    99,235.53/136,951.16 = 56,793.15/x
  3. Step 3: Cross multiply
    99,235.53x = 136,951.16 × 56,793.15
  4. Step 4: Simplify right side
    99,235.53x = 7,777,887,488.59
  5. Step 5: Solve for x
    x = 7,777,887,488.59/99,235.53
  6. Step 6: Final answer
    x = 78,378.05

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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.