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Finding the Fourth Proportional to 103,211.52, 154,797.84 and 40,031.52

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Solution

The fourth proportional to 103,211.52, 154,797.84 and 40,031.52 is: 60,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,211.52 : 154,797.84 = 40,031.52 : x
  2. Step 2: Convert to fraction form
    103,211.52/154,797.84 = 40,031.52/x
  3. Step 3: Cross multiply
    103,211.52x = 154,797.84 × 40,031.52
  4. Step 4: Simplify right side
    103,211.52x = 6,196,792,827.92
  5. Step 5: Solve for x
    x = 6,196,792,827.92/103,211.52
  6. Step 6: Final answer
    x = 60,039.74

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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.