Home / 211,724.28-292,082.05-135,205.05

Finding the Fourth Proportional to 211,724.28, 292,082.05 and 135,205.05

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Solution

The fourth proportional to 211,724.28, 292,082.05 and 135,205.05 is: 186,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,724.28 : 292,082.05 = 135,205.05 : x
  2. Step 2: Convert to fraction form
    211,724.28/292,082.05 = 135,205.05/x
  3. Step 3: Cross multiply
    211,724.28x = 292,082.05 × 135,205.05
  4. Step 4: Simplify right side
    211,724.28x = 39,490,967,795.71
  5. Step 5: Solve for x
    x = 39,490,967,795.71/211,724.28
  6. Step 6: Final answer
    x = 186,520.73

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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.