Home / 156,069.32-215,374.06-84,447.76

Finding the Fourth Proportional to 156,069.32, 215,374.06 and 84,447.76

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Solution

The fourth proportional to 156,069.32, 215,374.06 and 84,447.76 is: 116,537.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,069.32 : 215,374.06 = 84,447.76 : x
  2. Step 2: Convert to fraction form
    156,069.32/215,374.06 = 84,447.76/x
  3. Step 3: Cross multiply
    156,069.32x = 215,374.06 × 84,447.76
  4. Step 4: Simplify right side
    156,069.32x = 18,187,856,929.11
  5. Step 5: Solve for x
    x = 18,187,856,929.11/156,069.32
  6. Step 6: Final answer
    x = 116,537.04

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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.