Home / 156,111.30-215,432.46-84,489.66

Finding the Fourth Proportional to 156,111.30, 215,432.46 and 84,489.66

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Solution

The fourth proportional to 156,111.30, 215,432.46 and 84,489.66 is: 116,595.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,111.30 : 215,432.46 = 84,489.66 : x
  2. Step 2: Convert to fraction form
    156,111.30/215,432.46 = 84,489.66/x
  3. Step 3: Cross multiply
    156,111.30x = 215,432.46 × 84,489.66
  4. Step 4: Simplify right side
    156,111.30x = 18,201,815,298.36
  5. Step 5: Solve for x
    x = 18,201,815,298.36/156,111.30
  6. Step 6: Final answer
    x = 116,595.12

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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.