Home / 147,517.80-203,571.18-90,156.90

Finding the Fourth Proportional to 147,517.80, 203,571.18 and 90,156.90

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Solution

The fourth proportional to 147,517.80, 203,571.18 and 90,156.90 is: 124,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,517.80 : 203,571.18 = 90,156.90 : x
  2. Step 2: Convert to fraction form
    147,517.80/203,571.18 = 90,156.90/x
  3. Step 3: Cross multiply
    147,517.80x = 203,571.18 × 90,156.90
  4. Step 4: Simplify right side
    147,517.80x = 18,353,346,518.14
  5. Step 5: Solve for x
    x = 18,353,346,518.14/147,517.80
  6. Step 6: Final answer
    x = 124,414.45

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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.