Home / 156,609.29-216,120.96-84,989.31

Finding the Fourth Proportional to 156,609.29, 216,120.96 and 84,989.31

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Solution

The fourth proportional to 156,609.29, 216,120.96 and 84,989.31 is: 117,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,609.29 : 216,120.96 = 84,989.31 : x
  2. Step 2: Convert to fraction form
    156,609.29/216,120.96 = 84,989.31/x
  3. Step 3: Cross multiply
    156,609.29x = 216,120.96 × 84,989.31
  4. Step 4: Simplify right side
    156,609.29x = 18,367,970,456.48
  5. Step 5: Solve for x
    x = 18,367,970,456.48/156,609.29
  6. Step 6: Final answer
    x = 117,285.32

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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.