Home / 113,374.08-156,438.54-65,618.10

Finding the Fourth Proportional to 113,374.08, 156,438.54 and 65,618.10

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Solution

The fourth proportional to 113,374.08, 156,438.54 and 65,618.10 is: 90,542.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,374.08 : 156,438.54 = 65,618.10 : x
  2. Step 2: Convert to fraction form
    113,374.08/156,438.54 = 65,618.10/x
  3. Step 3: Cross multiply
    113,374.08x = 156,438.54 × 65,618.10
  4. Step 4: Simplify right side
    113,374.08x = 10,265,199,761.57
  5. Step 5: Solve for x
    x = 10,265,199,761.57/113,374.08
  6. Step 6: Final answer
    x = 90,542.74

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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.