Home / 147,817.28-221,587.68-54,297.92

Finding the Fourth Proportional to 147,817.28, 221,587.68 and 54,297.92

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Solution

The fourth proportional to 147,817.28, 221,587.68 and 54,297.92 is: 81,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,817.28 : 221,587.68 = 54,297.92 : x
  2. Step 2: Convert to fraction form
    147,817.28/221,587.68 = 54,297.92/x
  3. Step 3: Cross multiply
    147,817.28x = 221,587.68 × 54,297.92
  4. Step 4: Simplify right side
    147,817.28x = 12,031,750,121.63
  5. Step 5: Solve for x
    x = 12,031,750,121.63/147,817.28
  6. Step 6: Final answer
    x = 81,396.10

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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.