Home / 171,330.30-256,995.45-115,343.10

Finding the Fourth Proportional to 171,330.30, 256,995.45 and 115,343.10

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Solution

The fourth proportional to 171,330.30, 256,995.45 and 115,343.10 is: 173,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,330.30 : 256,995.45 = 115,343.10 : x
  2. Step 2: Convert to fraction form
    171,330.30/256,995.45 = 115,343.10/x
  3. Step 3: Cross multiply
    171,330.30x = 256,995.45 × 115,343.10
  4. Step 4: Simplify right side
    171,330.30x = 29,642,651,888.90
  5. Step 5: Solve for x
    x = 29,642,651,888.90/171,330.30
  6. Step 6: Final answer
    x = 173,014.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.