Home / 148,977.30-205,387.44-101,147.61

Finding the Fourth Proportional to 148,977.30, 205,387.44 and 101,147.61

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Solution

The fourth proportional to 148,977.30, 205,387.44 and 101,147.61 is: 139,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,977.30 : 205,387.44 = 101,147.61 : x
  2. Step 2: Convert to fraction form
    148,977.30/205,387.44 = 101,147.61/x
  3. Step 3: Cross multiply
    148,977.30x = 205,387.44 × 101,147.61
  4. Step 4: Simplify right side
    148,977.30x = 20,774,448,680.02
  5. Step 5: Solve for x
    x = 20,774,448,680.02/148,977.30
  6. Step 6: Final answer
    x = 139,447.07

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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.