Home / 124,954.20-187,139.70-122,448.60

Finding the Fourth Proportional to 124,954.20, 187,139.70 and 122,448.60

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Solution

The fourth proportional to 124,954.20, 187,139.70 and 122,448.60 is: 183,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,954.20 : 187,139.70 = 122,448.60 : x
  2. Step 2: Convert to fraction form
    124,954.20/187,139.70 = 122,448.60/x
  3. Step 3: Cross multiply
    124,954.20x = 187,139.70 × 122,448.60
  4. Step 4: Simplify right side
    124,954.20x = 22,914,994,269.42
  5. Step 5: Solve for x
    x = 22,914,994,269.42/124,954.20
  6. Step 6: Final answer
    x = 183,387.15

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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.