Home / 135,689.40-203,366.70-98,377.56

Finding the Fourth Proportional to 135,689.40, 203,366.70 and 98,377.56

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Solution

The fourth proportional to 135,689.40, 203,366.70 and 98,377.56 is: 147,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,689.40 : 203,366.70 = 98,377.56 : x
  2. Step 2: Convert to fraction form
    135,689.40/203,366.70 = 98,377.56/x
  3. Step 3: Cross multiply
    135,689.40x = 203,366.70 × 98,377.56
  4. Step 4: Simplify right side
    135,689.40x = 20,006,719,731.25
  5. Step 5: Solve for x
    x = 20,006,719,731.25/135,689.40
  6. Step 6: Final answer
    x = 147,444.97

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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.