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Finding the Fourth Proportional to 158,195.58, 218,306.98 and 86,574.16

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Solution

The fourth proportional to 158,195.58, 218,306.98 and 86,574.16 is: 119,470.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,195.58 : 218,306.98 = 86,574.16 : x
  2. Step 2: Convert to fraction form
    158,195.58/218,306.98 = 86,574.16/x
  3. Step 3: Cross multiply
    158,195.58x = 218,306.98 × 86,574.16
  4. Step 4: Simplify right side
    158,195.58x = 18,899,743,415.64
  5. Step 5: Solve for x
    x = 18,899,743,415.64/158,195.58
  6. Step 6: Final answer
    x = 119,470.74

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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.