Home / 158,248.38-218,383.14-86,633.02

Finding the Fourth Proportional to 158,248.38, 218,383.14 and 86,633.02

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Solution

The fourth proportional to 158,248.38, 218,383.14 and 86,633.02 is: 119,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,248.38 : 218,383.14 = 86,633.02 : x
  2. Step 2: Convert to fraction form
    158,248.38/218,383.14 = 86,633.02/x
  3. Step 3: Cross multiply
    158,248.38x = 218,383.14 × 86,633.02
  4. Step 4: Simplify right side
    158,248.38x = 18,919,190,935.28
  5. Step 5: Solve for x
    x = 18,919,190,935.28/158,248.38
  6. Step 6: Final answer
    x = 119,553.77

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1.5x scale

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.