Home / 142,520.44-196,646.99-85,151.15

Finding the Fourth Proportional to 142,520.44, 196,646.99 and 85,151.15

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Solution

The fourth proportional to 142,520.44, 196,646.99 and 85,151.15 is: 117,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,520.44 : 196,646.99 = 85,151.15 : x
  2. Step 2: Convert to fraction form
    142,520.44/196,646.99 = 85,151.15/x
  3. Step 3: Cross multiply
    142,520.44x = 196,646.99 × 85,151.15
  4. Step 4: Simplify right side
    142,520.44x = 16,744,717,149.95
  5. Step 5: Solve for x
    x = 16,744,717,149.95/142,520.44
  6. Step 6: Final answer
    x = 117,489.94

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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.