Home / 229,422.24-316,633.86-128,839.68

Finding the Fourth Proportional to 229,422.24, 316,633.86 and 128,839.68

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Solution

The fourth proportional to 229,422.24, 316,633.86 and 128,839.68 is: 177,816.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,422.24 : 316,633.86 = 128,839.68 : x
  2. Step 2: Convert to fraction form
    229,422.24/316,633.86 = 128,839.68/x
  3. Step 3: Cross multiply
    229,422.24x = 316,633.86 × 128,839.68
  4. Step 4: Simplify right side
    229,422.24x = 40,795,005,199.56
  5. Step 5: Solve for x
    x = 40,795,005,199.56/229,422.24
  6. Step 6: Final answer
    x = 177,816.26

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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.