Home / 147,864.80-221,408.40-108,207.20

Finding the Fourth Proportional to 147,864.80, 221,408.40 and 108,207.20

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Solution

The fourth proportional to 147,864.80, 221,408.40 and 108,207.20 is: 162,026.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,864.80 : 221,408.40 = 108,207.20 : x
  2. Step 2: Convert to fraction form
    147,864.80/221,408.40 = 108,207.20/x
  3. Step 3: Cross multiply
    147,864.80x = 221,408.40 × 108,207.20
  4. Step 4: Simplify right side
    147,864.80x = 23,957,983,020.48
  5. Step 5: Solve for x
    x = 23,957,983,020.48/147,864.80
  6. Step 6: Final answer
    x = 162,026.28

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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.