Home / 135,470.20-202,913.70-112,142.20

Finding the Fourth Proportional to 135,470.20, 202,913.70 and 112,142.20

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Solution

The fourth proportional to 135,470.20, 202,913.70 and 112,142.20 is: 167,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,470.20 : 202,913.70 = 112,142.20 : x
  2. Step 2: Convert to fraction form
    135,470.20/202,913.70 = 112,142.20/x
  3. Step 3: Cross multiply
    135,470.20x = 202,913.70 × 112,142.20
  4. Step 4: Simplify right side
    135,470.20x = 22,755,188,728.14
  5. Step 5: Solve for x
    x = 22,755,188,728.14/135,470.20
  6. Step 6: Final answer
    x = 167,971.91

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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.