Home / 158,134.08-218,304-91,053.12

Finding the Fourth Proportional to 158,134.08, 218,304 and 91,053.12

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Solution

The fourth proportional to 158,134.08, 218,304 and 91,053.12 is: 125,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,134.08 : 218,304 = 91,053.12 : x
  2. Step 2: Convert to fraction form
    158,134.08/218,304 = 91,053.12/x
  3. Step 3: Cross multiply
    158,134.08x = 218,304 × 91,053.12
  4. Step 4: Simplify right side
    158,134.08x = 19,877,260,308.48
  5. Step 5: Solve for x
    x = 19,877,260,308.48/158,134.08
  6. Step 6: Final answer
    x = 125,698.78

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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.