Home / 148,835.28-205,394.34-81,767.28

Finding the Fourth Proportional to 148,835.28, 205,394.34 and 81,767.28

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Solution

The fourth proportional to 148,835.28, 205,394.34 and 81,767.28 is: 112,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,835.28 : 205,394.34 = 81,767.28 : x
  2. Step 2: Convert to fraction form
    148,835.28/205,394.34 = 81,767.28/x
  3. Step 3: Cross multiply
    148,835.28x = 205,394.34 × 81,767.28
  4. Step 4: Simplify right side
    148,835.28x = 16,794,536,509.20
  5. Step 5: Solve for x
    x = 16,794,536,509.20/148,835.28
  6. Step 6: Final answer
    x = 112,839.75

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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.