Home / 103,218.03-154,827.27-28,339.20

Finding the Fourth Proportional to 103,218.03, 154,827.27 and 28,339.20

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Solution

The fourth proportional to 103,218.03, 154,827.27 and 28,339.20 is: 42,508.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,218.03 : 154,827.27 = 28,339.20 : x
  2. Step 2: Convert to fraction form
    103,218.03/154,827.27 = 28,339.20/x
  3. Step 3: Cross multiply
    103,218.03x = 154,827.27 × 28,339.20
  4. Step 4: Simplify right side
    103,218.03x = 4,387,680,969.98
  5. Step 5: Solve for x
    x = 4,387,680,969.98/103,218.03
  6. Step 6: Final answer
    x = 42,508.86

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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.