Home / 141,411.68-195,143.12-77,748.96

Finding the Fourth Proportional to 141,411.68, 195,143.12 and 77,748.96

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Solution

The fourth proportional to 141,411.68, 195,143.12 and 77,748.96 is: 107,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,411.68 : 195,143.12 = 77,748.96 : x
  2. Step 2: Convert to fraction form
    141,411.68/195,143.12 = 77,748.96/x
  3. Step 3: Cross multiply
    141,411.68x = 195,143.12 × 77,748.96
  4. Step 4: Simplify right side
    141,411.68x = 15,172,174,631.16
  5. Step 5: Solve for x
    x = 15,172,174,631.16/141,411.68
  6. Step 6: Final answer
    x = 107,290.82

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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.