Home / 156,290.60-215,680.74-84,672.42

Finding the Fourth Proportional to 156,290.60, 215,680.74 and 84,672.42

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Solution

The fourth proportional to 156,290.60, 215,680.74 and 84,672.42 is: 116,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,290.60 : 215,680.74 = 84,672.42 : x
  2. Step 2: Convert to fraction form
    156,290.60/215,680.74 = 84,672.42/x
  3. Step 3: Cross multiply
    156,290.60x = 215,680.74 × 84,672.42
  4. Step 4: Simplify right side
    156,290.60x = 18,262,210,203.19
  5. Step 5: Solve for x
    x = 18,262,210,203.19/156,290.60
  6. Step 6: Final answer
    x = 116,847.78

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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.