Home / 201,964.56-278,712.20-117,131.92

Finding the Fourth Proportional to 201,964.56, 278,712.20 and 117,131.92

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Solution

The fourth proportional to 201,964.56, 278,712.20 and 117,131.92 is: 161,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,964.56 : 278,712.20 = 117,131.92 : x
  2. Step 2: Convert to fraction form
    201,964.56/278,712.20 = 117,131.92/x
  3. Step 3: Cross multiply
    201,964.56x = 278,712.20 × 117,131.92
  4. Step 4: Simplify right side
    201,964.56x = 32,646,095,113.42
  5. Step 5: Solve for x
    x = 32,646,095,113.42/201,964.56
  6. Step 6: Final answer
    x = 161,642.69

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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.