Home / 141,550.20-195,341.22-77,890.68

Finding the Fourth Proportional to 141,550.20, 195,341.22 and 77,890.68

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Solution

The fourth proportional to 141,550.20, 195,341.22 and 77,890.68 is: 107,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,550.20 : 195,341.22 = 77,890.68 : x
  2. Step 2: Convert to fraction form
    141,550.20/195,341.22 = 77,890.68/x
  3. Step 3: Cross multiply
    141,550.20x = 195,341.22 × 77,890.68
  4. Step 4: Simplify right side
    141,550.20x = 15,215,260,457.83
  5. Step 5: Solve for x
    x = 15,215,260,457.83/141,550.20
  6. Step 6: Final answer
    x = 107,490.21

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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.