Home / 113,676.23-156,873.96-62,690.78

Finding the Fourth Proportional to 113,676.23, 156,873.96 and 62,690.78

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Solution

The fourth proportional to 113,676.23, 156,873.96 and 62,690.78 is: 86,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,676.23 : 156,873.96 = 62,690.78 : x
  2. Step 2: Convert to fraction form
    113,676.23/156,873.96 = 62,690.78/x
  3. Step 3: Cross multiply
    113,676.23x = 156,873.96 × 62,690.78
  4. Step 4: Simplify right side
    113,676.23x = 9,834,550,129.72
  5. Step 5: Solve for x
    x = 9,834,550,129.72/113,676.23
  6. Step 6: Final answer
    x = 86,513.69

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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.