Home / 156,647.38-216,167.60-85,025.88

Finding the Fourth Proportional to 156,647.38, 216,167.60 and 85,025.88

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Solution

The fourth proportional to 156,647.38, 216,167.60 and 85,025.88 is: 117,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,647.38 : 216,167.60 = 85,025.88 : x
  2. Step 2: Convert to fraction form
    156,647.38/216,167.60 = 85,025.88/x
  3. Step 3: Cross multiply
    156,647.38x = 216,167.60 × 85,025.88
  4. Step 4: Simplify right side
    156,647.38x = 18,379,840,417.49
  5. Step 5: Solve for x
    x = 18,379,840,417.49/156,647.38
  6. Step 6: Final answer
    x = 117,332.57

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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.