Home / 144,001.90-215,905.65-76,545.10

Finding the Fourth Proportional to 144,001.90, 215,905.65 and 76,545.10

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Solution

The fourth proportional to 144,001.90, 215,905.65 and 76,545.10 is: 114,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,001.90 : 215,905.65 = 76,545.10 : x
  2. Step 2: Convert to fraction form
    144,001.90/215,905.65 = 76,545.10/x
  3. Step 3: Cross multiply
    144,001.90x = 215,905.65 × 76,545.10
  4. Step 4: Simplify right side
    144,001.90x = 16,526,519,569.82
  5. Step 5: Solve for x
    x = 16,526,519,569.82/144,001.90
  6. Step 6: Final answer
    x = 114,765.98

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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.