Home / 156,748.10-216,311.43-85,127.50

Finding the Fourth Proportional to 156,748.10, 216,311.43 and 85,127.50

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Solution

The fourth proportional to 156,748.10, 216,311.43 and 85,127.50 is: 117,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.10 : 216,311.43 = 85,127.50 : x
  2. Step 2: Convert to fraction form
    156,748.10/216,311.43 = 85,127.50/x
  3. Step 3: Cross multiply
    156,748.10x = 216,311.43 × 85,127.50
  4. Step 4: Simplify right side
    156,748.10x = 18,414,050,716.55
  5. Step 5: Solve for x
    x = 18,414,050,716.55/156,748.10
  6. Step 6: Final answer
    x = 117,475.43

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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.