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Finding the Fourth Proportional to 164,799.80, 247,199.70 and 40,140.80

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Solution

The fourth proportional to 164,799.80, 247,199.70 and 40,140.80 is: 60,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,799.80 : 247,199.70 = 40,140.80 : x
  2. Step 2: Convert to fraction form
    164,799.80/247,199.70 = 40,140.80/x
  3. Step 3: Cross multiply
    164,799.80x = 247,199.70 × 40,140.80
  4. Step 4: Simplify right side
    164,799.80x = 9,922,793,717.76
  5. Step 5: Solve for x
    x = 9,922,793,717.76/164,799.80
  6. Step 6: Final answer
    x = 60,211.20

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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.