Home / 102,606.48-154,143.24-74,230.95

Finding the Fourth Proportional to 102,606.48, 154,143.24 and 74,230.95

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Solution

The fourth proportional to 102,606.48, 154,143.24 and 74,230.95 is: 111,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,606.48 : 154,143.24 = 74,230.95 : x
  2. Step 2: Convert to fraction form
    102,606.48/154,143.24 = 74,230.95/x
  3. Step 3: Cross multiply
    102,606.48x = 154,143.24 × 74,230.95
  4. Step 4: Simplify right side
    102,606.48x = 11,442,199,141.28
  5. Step 5: Solve for x
    x = 11,442,199,141.28/102,606.48
  6. Step 6: Final answer
    x = 111,515.37

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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.