Home / 154,491.36-213,082.02-103,561.53

Finding the Fourth Proportional to 154,491.36, 213,082.02 and 103,561.53

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Solution

The fourth proportional to 154,491.36, 213,082.02 and 103,561.53 is: 142,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,491.36 : 213,082.02 = 103,561.53 : x
  2. Step 2: Convert to fraction form
    154,491.36/213,082.02 = 103,561.53/x
  3. Step 3: Cross multiply
    154,491.36x = 213,082.02 × 103,561.53
  4. Step 4: Simplify right side
    154,491.36x = 22,067,100,006.69
  5. Step 5: Solve for x
    x = 22,067,100,006.69/154,491.36
  6. Step 6: Final answer
    x = 142,837.11

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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.