Home / 189,213.46-261,152.40-108,696.22

Finding the Fourth Proportional to 189,213.46, 261,152.40 and 108,696.22

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Solution

The fourth proportional to 189,213.46, 261,152.40 and 108,696.22 is: 150,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,213.46 : 261,152.40 = 108,696.22 : x
  2. Step 2: Convert to fraction form
    189,213.46/261,152.40 = 108,696.22/x
  3. Step 3: Cross multiply
    189,213.46x = 261,152.40 × 108,696.22
  4. Step 4: Simplify right side
    189,213.46x = 28,386,278,478.66
  5. Step 5: Solve for x
    x = 28,386,278,478.66/189,213.46
  6. Step 6: Final answer
    x = 150,022.51

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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.