Home / 124,780.20-187,343.10-98,514.60

Finding the Fourth Proportional to 124,780.20, 187,343.10 and 98,514.60

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Solution

The fourth proportional to 124,780.20, 187,343.10 and 98,514.60 is: 147,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780.20 : 187,343.10 = 98,514.60 : x
  2. Step 2: Convert to fraction form
    124,780.20/187,343.10 = 98,514.60/x
  3. Step 3: Cross multiply
    124,780.20x = 187,343.10 × 98,514.60
  4. Step 4: Simplify right side
    124,780.20x = 18,456,030,559.26
  5. Step 5: Solve for x
    x = 18,456,030,559.26/124,780.20
  6. Step 6: Final answer
    x = 147,908.33

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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.