Home / 158,387.13-218,491.38-97,938.45

Finding the Fourth Proportional to 158,387.13, 218,491.38 and 97,938.45

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Solution

The fourth proportional to 158,387.13, 218,491.38 and 97,938.45 is: 135,103.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,387.13 : 218,491.38 = 97,938.45 : x
  2. Step 2: Convert to fraction form
    158,387.13/218,491.38 = 97,938.45/x
  3. Step 3: Cross multiply
    158,387.13x = 218,491.38 × 97,938.45
  4. Step 4: Simplify right side
    158,387.13x = 21,398,707,095.56
  5. Step 5: Solve for x
    x = 21,398,707,095.56/158,387.13
  6. Step 6: Final answer
    x = 135,103.83

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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.