Home / 147,587.75-203,686.78-90,260.60

Finding the Fourth Proportional to 147,587.75, 203,686.78 and 90,260.60

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Solution

The fourth proportional to 147,587.75, 203,686.78 and 90,260.60 is: 124,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,587.75 : 203,686.78 = 90,260.60 : x
  2. Step 2: Convert to fraction form
    147,587.75/203,686.78 = 90,260.60/x
  3. Step 3: Cross multiply
    147,587.75x = 203,686.78 × 90,260.60
  4. Step 4: Simplify right side
    147,587.75x = 18,384,890,974.87
  5. Step 5: Solve for x
    x = 18,384,890,974.87/147,587.75
  6. Step 6: Final answer
    x = 124,569.22

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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.