Home / 156,688.20-216,229.86-85,068.18

Finding the Fourth Proportional to 156,688.20, 216,229.86 and 85,068.18

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Solution

The fourth proportional to 156,688.20, 216,229.86 and 85,068.18 is: 117,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,688.20 : 216,229.86 = 85,068.18 : x
  2. Step 2: Convert to fraction form
    156,688.20/216,229.86 = 85,068.18/x
  3. Step 3: Cross multiply
    156,688.20x = 216,229.86 × 85,068.18
  4. Step 4: Simplify right side
    156,688.20x = 18,394,280,651.85
  5. Step 5: Solve for x
    x = 18,394,280,651.85/156,688.20
  6. Step 6: Final answer
    x = 117,394.17

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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.