Home / 124,823.20-187,234.80-49,979.20

Finding the Fourth Proportional to 124,823.20, 187,234.80 and 49,979.20

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Solution

The fourth proportional to 124,823.20, 187,234.80 and 49,979.20 is: 74,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,823.20 : 187,234.80 = 49,979.20 : x
  2. Step 2: Convert to fraction form
    124,823.20/187,234.80 = 49,979.20/x
  3. Step 3: Cross multiply
    124,823.20x = 187,234.80 × 49,979.20
  4. Step 4: Simplify right side
    124,823.20x = 9,357,845,516.16
  5. Step 5: Solve for x
    x = 9,357,845,516.16/124,823.20
  6. Step 6: Final answer
    x = 74,968.80

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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.