Home / 156,968.05-216,613.34-85,349.88

Finding the Fourth Proportional to 156,968.05, 216,613.34 and 85,349.88

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Solution

The fourth proportional to 156,968.05, 216,613.34 and 85,349.88 is: 117,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.05 : 216,613.34 = 85,349.88 : x
  2. Step 2: Convert to fraction form
    156,968.05/216,613.34 = 85,349.88/x
  3. Step 3: Cross multiply
    156,968.05x = 216,613.34 × 85,349.88
  4. Step 4: Simplify right side
    156,968.05x = 18,487,921,065.58
  5. Step 5: Solve for x
    x = 18,487,921,065.58/156,968.05
  6. Step 6: Final answer
    x = 117,781.43

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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.