Home / 113,289.05-156,335.77-62,301.78

Finding the Fourth Proportional to 113,289.05, 156,335.77 and 62,301.78

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Solution

The fourth proportional to 113,289.05, 156,335.77 and 62,301.78 is: 85,974.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,289.05 : 156,335.77 = 62,301.78 : x
  2. Step 2: Convert to fraction form
    113,289.05/156,335.77 = 62,301.78/x
  3. Step 3: Cross multiply
    113,289.05x = 156,335.77 × 62,301.78
  4. Step 4: Simplify right side
    113,289.05x = 9,739,996,826.55
  5. Step 5: Solve for x
    x = 9,739,996,826.55/113,289.05
  6. Step 6: Final answer
    x = 85,974.74

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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.