Home / 158,387.88-218,492.46-97,939.20

Finding the Fourth Proportional to 158,387.88, 218,492.46 and 97,939.20

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Solution

The fourth proportional to 158,387.88, 218,492.46 and 97,939.20 is: 135,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,387.88 : 218,492.46 = 97,939.20 : x
  2. Step 2: Convert to fraction form
    158,387.88/218,492.46 = 97,939.20/x
  3. Step 3: Cross multiply
    158,387.88x = 218,492.46 × 97,939.20
  4. Step 4: Simplify right side
    158,387.88x = 21,398,976,738.43
  5. Step 5: Solve for x
    x = 21,398,976,738.43/158,387.88
  6. Step 6: Final answer
    x = 135,104.89

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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.