Home / 147,830.13-221,832.68-54,401.49

Finding the Fourth Proportional to 147,830.13, 221,832.68 and 54,401.49

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Solution

The fourth proportional to 147,830.13, 221,832.68 and 54,401.49 is: 81,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,830.13 : 221,832.68 = 54,401.49 : x
  2. Step 2: Convert to fraction form
    147,830.13/221,832.68 = 54,401.49/x
  3. Step 3: Cross multiply
    147,830.13x = 221,832.68 × 54,401.49
  4. Step 4: Simplify right side
    147,830.13x = 12,068,028,050.69
  5. Step 5: Solve for x
    x = 12,068,028,050.69/147,830.13
  6. Step 6: Final answer
    x = 81,634.43

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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.