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Finding the Fourth Proportional to 158,168.73, 218,272.60 and 86,548.74

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Solution

The fourth proportional to 158,168.73, 218,272.60 and 86,548.74 is: 119,437.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,168.73 : 218,272.60 = 86,548.74 : x
  2. Step 2: Convert to fraction form
    158,168.73/218,272.60 = 86,548.74/x
  3. Step 3: Cross multiply
    158,168.73x = 218,272.60 × 86,548.74
  4. Step 4: Simplify right side
    158,168.73x = 18,891,218,506.52
  5. Step 5: Solve for x
    x = 18,891,218,506.52/158,168.73
  6. Step 6: Final answer
    x = 119,437.13

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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.