Home / 90,832.20-136,151.10-40,903.80

Finding the Fourth Proportional to 90,832.20, 136,151.10 and 40,903.80

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Solution

The fourth proportional to 90,832.20, 136,151.10 and 40,903.80 is: 61,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832.20 : 136,151.10 = 40,903.80 : x
  2. Step 2: Convert to fraction form
    90,832.20/136,151.10 = 40,903.80/x
  3. Step 3: Cross multiply
    90,832.20x = 136,151.10 × 40,903.80
  4. Step 4: Simplify right side
    90,832.20x = 5,569,097,364.18
  5. Step 5: Solve for x
    x = 5,569,097,364.18/90,832.20
  6. Step 6: Final answer
    x = 61,311.93

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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.