Home / 156,686.52-216,227.85-85,066.86

Finding the Fourth Proportional to 156,686.52, 216,227.85 and 85,066.86

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Solution

The fourth proportional to 156,686.52, 216,227.85 and 85,066.86 is: 117,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,686.52 : 216,227.85 = 85,066.86 : x
  2. Step 2: Convert to fraction form
    156,686.52/216,227.85 = 85,066.86/x
  3. Step 3: Cross multiply
    156,686.52x = 216,227.85 × 85,066.86
  4. Step 4: Simplify right side
    156,686.52x = 18,393,824,244.05
  5. Step 5: Solve for x
    x = 18,393,824,244.05/156,686.52
  6. Step 6: Final answer
    x = 117,392.51

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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.