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Finding the Fourth Proportional to 158,262.24, 218,404.48 and 86,641.04

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Solution

The fourth proportional to 158,262.24, 218,404.48 and 86,641.04 is: 119,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,262.24 : 218,404.48 = 86,641.04 : x
  2. Step 2: Convert to fraction form
    158,262.24/218,404.48 = 86,641.04/x
  3. Step 3: Cross multiply
    158,262.24x = 218,404.48 × 86,641.04
  4. Step 4: Simplify right side
    158,262.24x = 18,922,791,287.86
  5. Step 5: Solve for x
    x = 18,922,791,287.86/158,262.24
  6. Step 6: Final answer
    x = 119,566.05

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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.