Home / 149,981.60-225,118.20-90,932.60

Finding the Fourth Proportional to 149,981.60, 225,118.20 and 90,932.60

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Solution

The fourth proportional to 149,981.60, 225,118.20 and 90,932.60 is: 136,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,981.60 : 225,118.20 = 90,932.60 : x
  2. Step 2: Convert to fraction form
    149,981.60/225,118.20 = 90,932.60/x
  3. Step 3: Cross multiply
    149,981.60x = 225,118.20 × 90,932.60
  4. Step 4: Simplify right side
    149,981.60x = 20,470,583,233.32
  5. Step 5: Solve for x
    x = 20,470,583,233.32/149,981.60
  6. Step 6: Final answer
    x = 136,487.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.