Home / 135,423.60-203,154.28-56,519.76

Finding the Fourth Proportional to 135,423.60, 203,154.28 and 56,519.76

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Solution

The fourth proportional to 135,423.60, 203,154.28 and 56,519.76 is: 84,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,423.60 : 203,154.28 = 56,519.76 : x
  2. Step 2: Convert to fraction form
    135,423.60/203,154.28 = 56,519.76/x
  3. Step 3: Cross multiply
    135,423.60x = 203,154.28 × 56,519.76
  4. Step 4: Simplify right side
    135,423.60x = 11,482,231,148.57
  5. Step 5: Solve for x
    x = 11,482,231,148.57/135,423.60
  6. Step 6: Final answer
    x = 84,787.52

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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.