Home / 156,968.28-216,613.17-85,347.68

Finding the Fourth Proportional to 156,968.28, 216,613.17 and 85,347.68

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Solution

The fourth proportional to 156,968.28, 216,613.17 and 85,347.68 is: 117,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.28 : 216,613.17 = 85,347.68 : x
  2. Step 2: Convert to fraction form
    156,968.28/216,613.17 = 85,347.68/x
  3. Step 3: Cross multiply
    156,968.28x = 216,613.17 × 85,347.68
  4. Step 4: Simplify right side
    156,968.28x = 18,487,430,433.88
  5. Step 5: Solve for x
    x = 18,487,430,433.88/156,968.28
  6. Step 6: Final answer
    x = 117,778.13

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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.