Home / 219,635.59-303,104.15-121,520.38

Finding the Fourth Proportional to 219,635.59, 303,104.15 and 121,520.38

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Solution

The fourth proportional to 219,635.59, 303,104.15 and 121,520.38 is: 167,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,635.59 : 303,104.15 = 121,520.38 : x
  2. Step 2: Convert to fraction form
    219,635.59/303,104.15 = 121,520.38/x
  3. Step 3: Cross multiply
    219,635.59x = 303,104.15 × 121,520.38
  4. Step 4: Simplify right side
    219,635.59x = 36,833,331,487.58
  5. Step 5: Solve for x
    x = 36,833,331,487.58/219,635.59
  6. Step 6: Final answer
    x = 167,702.02

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1.5x scale

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.