Home / 154,747.60-213,535.68-91,081.60

Finding the Fourth Proportional to 154,747.60, 213,535.68 and 91,081.60

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Solution

The fourth proportional to 154,747.60, 213,535.68 and 91,081.60 is: 125,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,747.60 : 213,535.68 = 91,081.60 : x
  2. Step 2: Convert to fraction form
    154,747.60/213,535.68 = 91,081.60/x
  3. Step 3: Cross multiply
    154,747.60x = 213,535.68 × 91,081.60
  4. Step 4: Simplify right side
    154,747.60x = 19,449,171,391.49
  5. Step 5: Solve for x
    x = 19,449,171,391.49/154,747.60
  6. Step 6: Final answer
    x = 125,683.19

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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.