Home / 156,688.18-216,229.68-85,068.20

Finding the Fourth Proportional to 156,688.18, 216,229.68 and 85,068.20

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Solution

The fourth proportional to 156,688.18, 216,229.68 and 85,068.20 is: 117,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,688.18 : 216,229.68 = 85,068.20 : x
  2. Step 2: Convert to fraction form
    156,688.18/216,229.68 = 85,068.20/x
  3. Step 3: Cross multiply
    156,688.18x = 216,229.68 × 85,068.20
  4. Step 4: Simplify right side
    156,688.18x = 18,394,269,664.18
  5. Step 5: Solve for x
    x = 18,394,269,664.18/156,688.18
  6. Step 6: Final answer
    x = 117,394.11

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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.