Home / 129,013.83-193,545.12-57,934.80

Finding the Fourth Proportional to 129,013.83, 193,545.12 and 57,934.80

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Solution

The fourth proportional to 129,013.83, 193,545.12 and 57,934.80 is: 86,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,013.83 : 193,545.12 = 57,934.80 : x
  2. Step 2: Convert to fraction form
    129,013.83/193,545.12 = 57,934.80/x
  3. Step 3: Cross multiply
    129,013.83x = 193,545.12 × 57,934.80
  4. Step 4: Simplify right side
    129,013.83x = 11,212,997,818.18
  5. Step 5: Solve for x
    x = 11,212,997,818.18/129,013.83
  6. Step 6: Final answer
    x = 86,913.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.