Home / 103,214.40-154,821.83-28,335.57

Finding the Fourth Proportional to 103,214.40, 154,821.83 and 28,335.57

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Solution

The fourth proportional to 103,214.40, 154,821.83 and 28,335.57 is: 42,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,214.40 : 154,821.83 = 28,335.57 : x
  2. Step 2: Convert to fraction form
    103,214.40/154,821.83 = 28,335.57/x
  3. Step 3: Cross multiply
    103,214.40x = 154,821.83 × 28,335.57
  4. Step 4: Simplify right side
    103,214.40x = 4,386,964,238.62
  5. Step 5: Solve for x
    x = 4,386,964,238.62/103,214.40
  6. Step 6: Final answer
    x = 42,503.41

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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.