Home / 156,734.20-216,293.19-89,666.20

Finding the Fourth Proportional to 156,734.20, 216,293.19 and 89,666.20

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Solution

The fourth proportional to 156,734.20, 216,293.19 and 89,666.20 is: 123,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.20 : 216,293.19 = 89,666.20 : x
  2. Step 2: Convert to fraction form
    156,734.20/216,293.19 = 89,666.20/x
  3. Step 3: Cross multiply
    156,734.20x = 216,293.19 × 89,666.20
  4. Step 4: Simplify right side
    156,734.20x = 19,394,188,433.18
  5. Step 5: Solve for x
    x = 19,394,188,433.18/156,734.20
  6. Step 6: Final answer
    x = 123,739.35

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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.