Home / 155,763.47-215,025.35-91,223.73

Finding the Fourth Proportional to 155,763.47, 215,025.35 and 91,223.73

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Solution

The fourth proportional to 155,763.47, 215,025.35 and 91,223.73 is: 125,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,763.47 : 215,025.35 = 91,223.73 : x
  2. Step 2: Convert to fraction form
    155,763.47/215,025.35 = 91,223.73/x
  3. Step 3: Cross multiply
    155,763.47x = 215,025.35 × 91,223.73
  4. Step 4: Simplify right side
    155,763.47x = 19,615,414,471.56
  5. Step 5: Solve for x
    x = 19,615,414,471.56/155,763.47
  6. Step 6: Final answer
    x = 125,930.77

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1.5x scale

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.