Home / 104,639.86-156,956.31-45,475.59

Finding the Fourth Proportional to 104,639.86, 156,956.31 and 45,475.59

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Solution

The fourth proportional to 104,639.86, 156,956.31 and 45,475.59 is: 68,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,639.86 : 156,956.31 = 45,475.59 : x
  2. Step 2: Convert to fraction form
    104,639.86/156,956.31 = 45,475.59/x
  3. Step 3: Cross multiply
    104,639.86x = 156,956.31 × 45,475.59
  4. Step 4: Simplify right side
    104,639.86x = 7,137,680,801.47
  5. Step 5: Solve for x
    x = 7,137,680,801.47/104,639.86
  6. Step 6: Final answer
    x = 68,211.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.