Home / 148,114.71-204,315.15-90,781.77

Finding the Fourth Proportional to 148,114.71, 204,315.15 and 90,781.77

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Solution

The fourth proportional to 148,114.71, 204,315.15 and 90,781.77 is: 125,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,114.71 : 204,315.15 = 90,781.77 : x
  2. Step 2: Convert to fraction form
    148,114.71/204,315.15 = 90,781.77/x
  3. Step 3: Cross multiply
    148,114.71x = 204,315.15 × 90,781.77
  4. Step 4: Simplify right side
    148,114.71x = 18,548,090,954.82
  5. Step 5: Solve for x
    x = 18,548,090,954.82/148,114.71
  6. Step 6: Final answer
    x = 125,227.88

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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.