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Finding the Fourth Proportional to 158,151.04, 218,251.14 and 86,537.32

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Solution

The fourth proportional to 158,151.04, 218,251.14 and 86,537.32 is: 119,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,151.04 : 218,251.14 = 86,537.32 : x
  2. Step 2: Convert to fraction form
    158,151.04/218,251.14 = 86,537.32/x
  3. Step 3: Cross multiply
    158,151.04x = 218,251.14 × 86,537.32
  4. Step 4: Simplify right side
    158,151.04x = 18,886,868,742.54
  5. Step 5: Solve for x
    x = 18,886,868,742.54/158,151.04
  6. Step 6: Final answer
    x = 119,422.98

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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.