Home / 278,726.06-418,151.41-89,197.81

Finding the Fourth Proportional to 278,726.06, 418,151.41 and 89,197.81

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Solution

The fourth proportional to 278,726.06, 418,151.41 and 89,197.81 is: 133,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,726.06 : 418,151.41 = 89,197.81 : x
  2. Step 2: Convert to fraction form
    278,726.06/418,151.41 = 89,197.81/x
  3. Step 3: Cross multiply
    278,726.06x = 418,151.41 × 89,197.81
  4. Step 4: Simplify right side
    278,726.06x = 37,298,188,752.04
  5. Step 5: Solve for x
    x = 37,298,188,752.04/278,726.06
  6. Step 6: Final answer
    x = 133,816.65

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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.