Home / 154,543.88-213,195.30-100,804.52

Finding the Fourth Proportional to 154,543.88, 213,195.30 and 100,804.52

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Solution

The fourth proportional to 154,543.88, 213,195.30 and 100,804.52 is: 139,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,543.88 : 213,195.30 = 100,804.52 : x
  2. Step 2: Convert to fraction form
    154,543.88/213,195.30 = 100,804.52/x
  3. Step 3: Cross multiply
    154,543.88x = 213,195.30 × 100,804.52
  4. Step 4: Simplify right side
    154,543.88x = 21,491,049,882.76
  5. Step 5: Solve for x
    x = 21,491,049,882.76/154,543.88
  6. Step 6: Final answer
    x = 139,061.15

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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.