Home / 141,830.73-195,727.68-78,170.76

Finding the Fourth Proportional to 141,830.73, 195,727.68 and 78,170.76

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Solution

The fourth proportional to 141,830.73, 195,727.68 and 78,170.76 is: 107,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,830.73 : 195,727.68 = 78,170.76 : x
  2. Step 2: Convert to fraction form
    141,830.73/195,727.68 = 78,170.76/x
  3. Step 3: Cross multiply
    141,830.73x = 195,727.68 × 78,170.76
  4. Step 4: Simplify right side
    141,830.73x = 15,300,181,498.64
  5. Step 5: Solve for x
    x = 15,300,181,498.64/141,830.73
  6. Step 6: Final answer
    x = 107,876.35

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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.