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Finding the Fourth Proportional to 119,727.60, 179,615.70 and 40,849.80

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Solution

The fourth proportional to 119,727.60, 179,615.70 and 40,849.80 is: 61,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,727.60 : 179,615.70 = 40,849.80 : x
  2. Step 2: Convert to fraction form
    119,727.60/179,615.70 = 40,849.80/x
  3. Step 3: Cross multiply
    119,727.60x = 179,615.70 × 40,849.80
  4. Step 4: Simplify right side
    119,727.60x = 7,337,265,421.86
  5. Step 5: Solve for x
    x = 7,337,265,421.86/119,727.60
  6. Step 6: Final answer
    x = 61,282.99

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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.