Home / 147,619.20-221,428.80-146,744.40

Finding the Fourth Proportional to 147,619.20, 221,428.80 and 146,744.40

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Solution

The fourth proportional to 147,619.20, 221,428.80 and 146,744.40 is: 220,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.20 : 221,428.80 = 146,744.40 : x
  2. Step 2: Convert to fraction form
    147,619.20/221,428.80 = 146,744.40/x
  3. Step 3: Cross multiply
    147,619.20x = 221,428.80 × 146,744.40
  4. Step 4: Simplify right side
    147,619.20x = 32,493,436,398.72
  5. Step 5: Solve for x
    x = 32,493,436,398.72/147,619.20
  6. Step 6: Final answer
    x = 220,116.60

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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.