Home / 151,414.80-208,957.17-86,895.84

Finding the Fourth Proportional to 151,414.80, 208,957.17 and 86,895.84

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Solution

The fourth proportional to 151,414.80, 208,957.17 and 86,895.84 is: 119,918.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,414.80 : 208,957.17 = 86,895.84 : x
  2. Step 2: Convert to fraction form
    151,414.80/208,957.17 = 86,895.84/x
  3. Step 3: Cross multiply
    151,414.80x = 208,957.17 × 86,895.84
  4. Step 4: Simplify right side
    151,414.80x = 18,157,508,811.17
  5. Step 5: Solve for x
    x = 18,157,508,811.17/151,414.80
  6. Step 6: Final answer
    x = 119,918.98

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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.