Home / 124,821.20-187,231.80-124,043.60

Finding the Fourth Proportional to 124,821.20, 187,231.80 and 124,043.60

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Solution

The fourth proportional to 124,821.20, 187,231.80 and 124,043.60 is: 186,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,821.20 : 187,231.80 = 124,043.60 : x
  2. Step 2: Convert to fraction form
    124,821.20/187,231.80 = 124,043.60/x
  3. Step 3: Cross multiply
    124,821.20x = 187,231.80 × 124,043.60
  4. Step 4: Simplify right side
    124,821.20x = 23,224,906,506.48
  5. Step 5: Solve for x
    x = 23,224,906,506.48/124,821.20
  6. Step 6: Final answer
    x = 186,065.40

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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.