Home / 99,103.19-136,717.76-58,818.65

Finding the Fourth Proportional to 99,103.19, 136,717.76 and 58,818.65

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Solution

The fourth proportional to 99,103.19, 136,717.76 and 58,818.65 is: 81,143.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,103.19 : 136,717.76 = 58,818.65 : x
  2. Step 2: Convert to fraction form
    99,103.19/136,717.76 = 58,818.65/x
  3. Step 3: Cross multiply
    99,103.19x = 136,717.76 × 58,818.65
  4. Step 4: Simplify right side
    99,103.19x = 8,041,553,780.13
  5. Step 5: Solve for x
    x = 8,041,553,780.13/99,103.19
  6. Step 6: Final answer
    x = 81,143.24

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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.