Home / 113,740.72-156,961.80-63,439.68

Finding the Fourth Proportional to 113,740.72, 156,961.80 and 63,439.68

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Solution

The fourth proportional to 113,740.72, 156,961.80 and 63,439.68 is: 87,546.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,740.72 : 156,961.80 = 63,439.68 : x
  2. Step 2: Convert to fraction form
    113,740.72/156,961.80 = 63,439.68/x
  3. Step 3: Cross multiply
    113,740.72x = 156,961.80 × 63,439.68
  4. Step 4: Simplify right side
    113,740.72x = 9,957,606,364.22
  5. Step 5: Solve for x
    x = 9,957,606,364.22/113,740.72
  6. Step 6: Final answer
    x = 87,546.54

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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.