Home / 154,123.20-231,206.40-48,931.20

Finding the Fourth Proportional to 154,123.20, 231,206.40 and 48,931.20

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Solution

The fourth proportional to 154,123.20, 231,206.40 and 48,931.20 is: 73,403.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,123.20 : 231,206.40 = 48,931.20 : x
  2. Step 2: Convert to fraction form
    154,123.20/231,206.40 = 48,931.20/x
  3. Step 3: Cross multiply
    154,123.20x = 231,206.40 × 48,931.20
  4. Step 4: Simplify right side
    154,123.20x = 11,313,206,599.68
  5. Step 5: Solve for x
    x = 11,313,206,599.68/154,123.20
  6. Step 6: Final answer
    x = 73,403.66

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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.