Home / 154,690.44-231,970.05-54,875.76

Finding the Fourth Proportional to 154,690.44, 231,970.05 and 54,875.76

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Solution

The fourth proportional to 154,690.44, 231,970.05 and 54,875.76 is: 82,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,690.44 : 231,970.05 = 54,875.76 : x
  2. Step 2: Convert to fraction form
    154,690.44/231,970.05 = 54,875.76/x
  3. Step 3: Cross multiply
    154,690.44x = 231,970.05 × 54,875.76
  4. Step 4: Simplify right side
    154,690.44x = 12,729,532,790.99
  5. Step 5: Solve for x
    x = 12,729,532,790.99/154,690.44
  6. Step 6: Final answer
    x = 82,290.37

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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.