Home / 148,789.10-205,332.98-87,539.57

Finding the Fourth Proportional to 148,789.10, 205,332.98 and 87,539.57

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Solution

The fourth proportional to 148,789.10, 205,332.98 and 87,539.57 is: 120,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,789.10 : 205,332.98 = 87,539.57 : x
  2. Step 2: Convert to fraction form
    148,789.10/205,332.98 = 87,539.57/x
  3. Step 3: Cross multiply
    148,789.10x = 205,332.98 × 87,539.57
  4. Step 4: Simplify right side
    148,789.10x = 17,974,760,081.65
  5. Step 5: Solve for x
    x = 17,974,760,081.65/148,789.10
  6. Step 6: Final answer
    x = 120,806.97

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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.