Home / 103,255.15-154,884.42-28,374.82

Finding the Fourth Proportional to 103,255.15, 154,884.42 and 28,374.82

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Solution

The fourth proportional to 103,255.15, 154,884.42 and 28,374.82 is: 42,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255.15 : 154,884.42 = 28,374.82 : x
  2. Step 2: Convert to fraction form
    103,255.15/154,884.42 = 28,374.82/x
  3. Step 3: Cross multiply
    103,255.15x = 154,884.42 × 28,374.82
  4. Step 4: Simplify right side
    103,255.15x = 4,394,817,731.91
  5. Step 5: Solve for x
    x = 4,394,817,731.91/103,255.15
  6. Step 6: Final answer
    x = 42,562.70

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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.