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Finding the Fourth Proportional to 103,182.76, 154,787.88 and 40,838.68

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Solution

The fourth proportional to 103,182.76, 154,787.88 and 40,838.68 is: 61,263.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,182.76 : 154,787.88 = 40,838.68 : x
  2. Step 2: Convert to fraction form
    103,182.76/154,787.88 = 40,838.68/x
  3. Step 3: Cross multiply
    103,182.76x = 154,787.88 × 40,838.68
  4. Step 4: Simplify right side
    103,182.76x = 6,321,332,699.20
  5. Step 5: Solve for x
    x = 6,321,332,699.20/103,182.76
  6. Step 6: Final answer
    x = 61,263.46

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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.