Home / 135,352.61-186,784.33-74,921.95

Finding the Fourth Proportional to 135,352.61, 186,784.33 and 74,921.95

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Solution

The fourth proportional to 135,352.61, 186,784.33 and 74,921.95 is: 103,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,352.61 : 186,784.33 = 74,921.95 : x
  2. Step 2: Convert to fraction form
    135,352.61/186,784.33 = 74,921.95/x
  3. Step 3: Cross multiply
    135,352.61x = 186,784.33 × 74,921.95
  4. Step 4: Simplify right side
    135,352.61x = 13,994,245,578.78
  5. Step 5: Solve for x
    x = 13,994,245,578.78/135,352.61
  6. Step 6: Final answer
    x = 103,391.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.