Home / 142,630.80-196,833.24-85,329.12

Finding the Fourth Proportional to 142,630.80, 196,833.24 and 85,329.12

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Solution

The fourth proportional to 142,630.80, 196,833.24 and 85,329.12 is: 117,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,630.80 : 196,833.24 = 85,329.12 : x
  2. Step 2: Convert to fraction form
    142,630.80/196,833.24 = 85,329.12/x
  3. Step 3: Cross multiply
    142,630.80x = 196,833.24 × 85,329.12
  4. Step 4: Simplify right side
    142,630.80x = 16,795,607,155.95
  5. Step 5: Solve for x
    x = 16,795,607,155.95/142,630.80
  6. Step 6: Final answer
    x = 117,755.82

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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.