Home / 147,764.20-221,646.30-133,479.40

Finding the Fourth Proportional to 147,764.20, 221,646.30 and 133,479.40

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Solution

The fourth proportional to 147,764.20, 221,646.30 and 133,479.40 is: 200,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,764.20 : 221,646.30 = 133,479.40 : x
  2. Step 2: Convert to fraction form
    147,764.20/221,646.30 = 133,479.40/x
  3. Step 3: Cross multiply
    147,764.20x = 221,646.30 × 133,479.40
  4. Step 4: Simplify right side
    147,764.20x = 29,585,215,136.22
  5. Step 5: Solve for x
    x = 29,585,215,136.22/147,764.20
  6. Step 6: Final answer
    x = 200,219.10

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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.