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Finding the Fourth Proportional to 158,359.62, 218,536.37 and 86,740.84

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Solution

The fourth proportional to 158,359.62, 218,536.37 and 86,740.84 is: 119,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,359.62 : 218,536.37 = 86,740.84 : x
  2. Step 2: Convert to fraction form
    158,359.62/218,536.37 = 86,740.84/x
  3. Step 3: Cross multiply
    158,359.62x = 218,536.37 × 86,740.84
  4. Step 4: Simplify right side
    158,359.62x = 18,956,028,304.35
  5. Step 5: Solve for x
    x = 18,956,028,304.35/158,359.62
  6. Step 6: Final answer
    x = 119,702.41

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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.