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Finding the Fourth Proportional to 94,200.80, 141,301.20 and 81,516.20

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Solution

The fourth proportional to 94,200.80, 141,301.20 and 81,516.20 is: 122,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,200.80 : 141,301.20 = 81,516.20 : x
  2. Step 2: Convert to fraction form
    94,200.80/141,301.20 = 81,516.20/x
  3. Step 3: Cross multiply
    94,200.80x = 141,301.20 × 81,516.20
  4. Step 4: Simplify right side
    94,200.80x = 11,518,336,879.44
  5. Step 5: Solve for x
    x = 11,518,336,879.44/94,200.80
  6. Step 6: Final answer
    x = 122,274.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.