Home / 124,828.20-187,132.95-74,928.15

Finding the Fourth Proportional to 124,828.20, 187,132.95 and 74,928.15

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Solution

The fourth proportional to 124,828.20, 187,132.95 and 74,928.15 is: 112,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.20 : 187,132.95 = 74,928.15 : x
  2. Step 2: Convert to fraction form
    124,828.20/187,132.95 = 74,928.15/x
  3. Step 3: Cross multiply
    124,828.20x = 187,132.95 × 74,928.15
  4. Step 4: Simplify right side
    124,828.20x = 14,021,525,747.54
  5. Step 5: Solve for x
    x = 14,021,525,747.54/124,828.20
  6. Step 6: Final answer
    x = 112,326.59

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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.