Home / 141,318.23-195,016.88-77,654.66

Finding the Fourth Proportional to 141,318.23, 195,016.88 and 77,654.66

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Solution

The fourth proportional to 141,318.23, 195,016.88 and 77,654.66 is: 107,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,318.23 : 195,016.88 = 77,654.66 : x
  2. Step 2: Convert to fraction form
    141,318.23/195,016.88 = 77,654.66/x
  3. Step 3: Cross multiply
    141,318.23x = 195,016.88 × 77,654.66
  4. Step 4: Simplify right side
    141,318.23x = 15,143,968,729.71
  5. Step 5: Solve for x
    x = 15,143,968,729.71/141,318.23
  6. Step 6: Final answer
    x = 107,162.18

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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.