Home / 124,998.89-187,517.81-40,739.50

Finding the Fourth Proportional to 124,998.89, 187,517.81 and 40,739.50

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Solution

The fourth proportional to 124,998.89, 187,517.81 and 40,739.50 is: 61,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,998.89 : 187,517.81 = 40,739.50 : x
  2. Step 2: Convert to fraction form
    124,998.89/187,517.81 = 40,739.50/x
  3. Step 3: Cross multiply
    124,998.89x = 187,517.81 × 40,739.50
  4. Step 4: Simplify right side
    124,998.89x = 7,639,382,156.74
  5. Step 5: Solve for x
    x = 7,639,382,156.74/124,998.89
  6. Step 6: Final answer
    x = 61,115.60

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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.