Home / 141,355.90-195,074.86-77,695.40

Finding the Fourth Proportional to 141,355.90, 195,074.86 and 77,695.40

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Solution

The fourth proportional to 141,355.90, 195,074.86 and 77,695.40 is: 107,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,355.90 : 195,074.86 = 77,695.40 : x
  2. Step 2: Convert to fraction form
    141,355.90/195,074.86 = 77,695.40/x
  3. Step 3: Cross multiply
    141,355.90x = 195,074.86 × 77,695.40
  4. Step 4: Simplify right side
    141,355.90x = 15,156,419,277.64
  5. Step 5: Solve for x
    x = 15,156,419,277.64/141,355.90
  6. Step 6: Final answer
    x = 107,221.70

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1.5x scale

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.