Home / 156,634.28-216,155.50-85,014.30

Finding the Fourth Proportional to 156,634.28, 216,155.50 and 85,014.30

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Solution

The fourth proportional to 156,634.28, 216,155.50 and 85,014.30 is: 117,319.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634.28 : 216,155.50 = 85,014.30 : x
  2. Step 2: Convert to fraction form
    156,634.28/216,155.50 = 85,014.30/x
  3. Step 3: Cross multiply
    156,634.28x = 216,155.50 × 85,014.30
  4. Step 4: Simplify right side
    156,634.28x = 18,376,308,311.11
  5. Step 5: Solve for x
    x = 18,376,308,311.11/156,634.28
  6. Step 6: Final answer
    x = 117,319.84

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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.