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Finding the Fourth Proportional to 174,162.80, 261,088.68 and 68,909.78

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Solution

The fourth proportional to 174,162.80, 261,088.68 and 68,909.78 is: 103,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,162.80 : 261,088.68 = 68,909.78 : x
  2. Step 2: Convert to fraction form
    174,162.80/261,088.68 = 68,909.78/x
  3. Step 3: Cross multiply
    174,162.80x = 261,088.68 × 68,909.78
  4. Step 4: Simplify right side
    174,162.80x = 17,991,563,499.29
  5. Step 5: Solve for x
    x = 17,991,563,499.29/174,162.80
  6. Step 6: Final answer
    x = 103,303.14

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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.