Home / 141,385.50-195,116.55-77,727.90

Finding the Fourth Proportional to 141,385.50, 195,116.55 and 77,727.90

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Solution

The fourth proportional to 141,385.50, 195,116.55 and 77,727.90 is: 107,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,385.50 : 195,116.55 = 77,727.90 : x
  2. Step 2: Convert to fraction form
    141,385.50/195,116.55 = 77,727.90/x
  3. Step 3: Cross multiply
    141,385.50x = 195,116.55 × 77,727.90
  4. Step 4: Simplify right side
    141,385.50x = 15,165,999,686.75
  5. Step 5: Solve for x
    x = 15,165,999,686.75/141,385.50
  6. Step 6: Final answer
    x = 107,267.01

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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.