Home / 108,641.33-163,211.48-76,693.85

Finding the Fourth Proportional to 108,641.33, 163,211.48 and 76,693.85

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Solution

The fourth proportional to 108,641.33, 163,211.48 and 76,693.85 is: 115,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,641.33 : 163,211.48 = 76,693.85 : x
  2. Step 2: Convert to fraction form
    108,641.33/163,211.48 = 76,693.85/x
  3. Step 3: Cross multiply
    108,641.33x = 163,211.48 × 76,693.85
  4. Step 4: Simplify right side
    108,641.33x = 12,517,316,765.40
  5. Step 5: Solve for x
    x = 12,517,316,765.40/108,641.33
  6. Step 6: Final answer
    x = 115,216.90

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1.5x scale

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.