Home / 135,578.34-203,423.25-59,637.78

Finding the Fourth Proportional to 135,578.34, 203,423.25 and 59,637.78

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Solution

The fourth proportional to 135,578.34, 203,423.25 and 59,637.78 is: 89,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,578.34 : 203,423.25 = 59,637.78 : x
  2. Step 2: Convert to fraction form
    135,578.34/203,423.25 = 59,637.78/x
  3. Step 3: Cross multiply
    135,578.34x = 203,423.25 × 59,637.78
  4. Step 4: Simplify right side
    135,578.34x = 12,131,711,030.39
  5. Step 5: Solve for x
    x = 12,131,711,030.39/135,578.34
  6. Step 6: Final answer
    x = 89,481.19

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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.