Home / 141,620.68-195,442.12-77,964.40

Finding the Fourth Proportional to 141,620.68, 195,442.12 and 77,964.40

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Solution

The fourth proportional to 141,620.68, 195,442.12 and 77,964.40 is: 107,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,620.68 : 195,442.12 = 77,964.40 : x
  2. Step 2: Convert to fraction form
    141,620.68/195,442.12 = 77,964.40/x
  3. Step 3: Cross multiply
    141,620.68x = 195,442.12 × 77,964.40
  4. Step 4: Simplify right side
    141,620.68x = 15,237,527,620.53
  5. Step 5: Solve for x
    x = 15,237,527,620.53/141,620.68
  6. Step 6: Final answer
    x = 107,593.94

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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.