Home / 147,580.20-221,370.30-47,809.80

Finding the Fourth Proportional to 147,580.20, 221,370.30 and 47,809.80

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Solution

The fourth proportional to 147,580.20, 221,370.30 and 47,809.80 is: 71,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,580.20 : 221,370.30 = 47,809.80 : x
  2. Step 2: Convert to fraction form
    147,580.20/221,370.30 = 47,809.80/x
  3. Step 3: Cross multiply
    147,580.20x = 221,370.30 × 47,809.80
  4. Step 4: Simplify right side
    147,580.20x = 10,583,669,768.94
  5. Step 5: Solve for x
    x = 10,583,669,768.94/147,580.20
  6. Step 6: Final answer
    x = 71,714.70

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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.