Home / 147,621.40-221,432.10-146,309.20

Finding the Fourth Proportional to 147,621.40, 221,432.10 and 146,309.20

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Solution

The fourth proportional to 147,621.40, 221,432.10 and 146,309.20 is: 219,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.40 : 221,432.10 = 146,309.20 : x
  2. Step 2: Convert to fraction form
    147,621.40/221,432.10 = 146,309.20/x
  3. Step 3: Cross multiply
    147,621.40x = 221,432.10 × 146,309.20
  4. Step 4: Simplify right side
    147,621.40x = 32,397,553,405.32
  5. Step 5: Solve for x
    x = 32,397,553,405.32/147,621.40
  6. Step 6: Final answer
    x = 219,463.80

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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.