Home / 99,115.16-136,779.57-53,793.90

Finding the Fourth Proportional to 99,115.16, 136,779.57 and 53,793.90

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Solution

The fourth proportional to 99,115.16, 136,779.57 and 53,793.90 is: 74,235.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,115.16 : 136,779.57 = 53,793.90 : x
  2. Step 2: Convert to fraction form
    99,115.16/136,779.57 = 53,793.90/x
  3. Step 3: Cross multiply
    99,115.16x = 136,779.57 × 53,793.90
  4. Step 4: Simplify right side
    99,115.16x = 7,357,906,510.62
  5. Step 5: Solve for x
    x = 7,357,906,510.62/99,115.16
  6. Step 6: Final answer
    x = 74,235.94

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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.