Home / 154,475.28-213,174.24-86,492.88

Finding the Fourth Proportional to 154,475.28, 213,174.24 and 86,492.88

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Solution

The fourth proportional to 154,475.28, 213,174.24 and 86,492.88 is: 119,359.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,475.28 : 213,174.24 = 86,492.88 : x
  2. Step 2: Convert to fraction form
    154,475.28/213,174.24 = 86,492.88/x
  3. Step 3: Cross multiply
    154,475.28x = 213,174.24 × 86,492.88
  4. Step 4: Simplify right side
    154,475.28x = 18,438,053,959.41
  5. Step 5: Solve for x
    x = 18,438,053,959.41/154,475.28
  6. Step 6: Final answer
    x = 119,359.25

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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.