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Finding the Fourth Proportional to 103,253.76, 154,886.40 and 29,376

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Solution

The fourth proportional to 103,253.76, 154,886.40 and 29,376 is: 44,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,253.76 : 154,886.40 = 29,376 : x
  2. Step 2: Convert to fraction form
    103,253.76/154,886.40 = 29,376/x
  3. Step 3: Cross multiply
    103,253.76x = 154,886.40 × 29,376
  4. Step 4: Simplify right side
    103,253.76x = 4,549,942,886.40
  5. Step 5: Solve for x
    x = 4,549,942,886.40/103,253.76
  6. Step 6: Final answer
    x = 44,065.64

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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.