Home / 156,913.57-216,536.13-85,291.75

Finding the Fourth Proportional to 156,913.57, 216,536.13 and 85,291.75

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Solution

The fourth proportional to 156,913.57, 216,536.13 and 85,291.75 is: 117,700.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,913.57 : 216,536.13 = 85,291.75 : x
  2. Step 2: Convert to fraction form
    156,913.57/216,536.13 = 85,291.75/x
  3. Step 3: Cross multiply
    156,913.57x = 216,536.13 × 85,291.75
  4. Step 4: Simplify right side
    156,913.57x = 18,468,745,465.93
  5. Step 5: Solve for x
    x = 18,468,745,465.93/156,913.57
  6. Step 6: Final answer
    x = 117,700.12

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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.