Home / 105,613.62-145,741.20-60,289.80

Finding the Fourth Proportional to 105,613.62, 145,741.20 and 60,289.80

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Solution

The fourth proportional to 105,613.62, 145,741.20 and 60,289.80 is: 83,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,613.62 : 145,741.20 = 60,289.80 : x
  2. Step 2: Convert to fraction form
    105,613.62/145,741.20 = 60,289.80/x
  3. Step 3: Cross multiply
    105,613.62x = 145,741.20 × 60,289.80
  4. Step 4: Simplify right side
    105,613.62x = 8,786,707,799.76
  5. Step 5: Solve for x
    x = 8,786,707,799.76/105,613.62
  6. Step 6: Final answer
    x = 83,196.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.