Home / 156,968.55-216,614.05-85,350.38

Finding the Fourth Proportional to 156,968.55, 216,614.05 and 85,350.38

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Solution

The fourth proportional to 156,968.55, 216,614.05 and 85,350.38 is: 117,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.55 : 216,614.05 = 85,350.38 : x
  2. Step 2: Convert to fraction form
    156,968.55/216,614.05 = 85,350.38/x
  3. Step 3: Cross multiply
    156,968.55x = 216,614.05 × 85,350.38
  4. Step 4: Simplify right side
    156,968.55x = 18,488,090,184.39
  5. Step 5: Solve for x
    x = 18,488,090,184.39/156,968.55
  6. Step 6: Final answer
    x = 117,782.13

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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.