Home / 175,049.20-262,355.10-128,247.40

Finding the Fourth Proportional to 175,049.20, 262,355.10 and 128,247.40

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Solution

The fourth proportional to 175,049.20, 262,355.10 and 128,247.40 is: 192,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,049.20 : 262,355.10 = 128,247.40 : x
  2. Step 2: Convert to fraction form
    175,049.20/262,355.10 = 128,247.40/x
  3. Step 3: Cross multiply
    175,049.20x = 262,355.10 × 128,247.40
  4. Step 4: Simplify right side
    175,049.20x = 33,646,359,451.74
  5. Step 5: Solve for x
    x = 33,646,359,451.74/175,049.20
  6. Step 6: Final answer
    x = 192,210.87

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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.