Home / 141,699.08-195,542.38-78,042.80

Finding the Fourth Proportional to 141,699.08, 195,542.38 and 78,042.80

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Solution

The fourth proportional to 141,699.08, 195,542.38 and 78,042.80 is: 107,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,699.08 : 195,542.38 = 78,042.80 : x
  2. Step 2: Convert to fraction form
    141,699.08/195,542.38 = 78,042.80/x
  3. Step 3: Cross multiply
    141,699.08x = 195,542.38 × 78,042.80
  4. Step 4: Simplify right side
    141,699.08x = 15,260,674,853.86
  5. Step 5: Solve for x
    x = 15,260,674,853.86/141,699.08
  6. Step 6: Final answer
    x = 107,697.77

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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.