Home / 147,835.20-221,704.20-54,328.80

Finding the Fourth Proportional to 147,835.20, 221,704.20 and 54,328.80

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Solution

The fourth proportional to 147,835.20, 221,704.20 and 54,328.80 is: 81,475.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,835.20 : 221,704.20 = 54,328.80 : x
  2. Step 2: Convert to fraction form
    147,835.20/221,704.20 = 54,328.80/x
  3. Step 3: Cross multiply
    147,835.20x = 221,704.20 × 54,328.80
  4. Step 4: Simplify right side
    147,835.20x = 12,044,923,140.96
  5. Step 5: Solve for x
    x = 12,044,923,140.96/147,835.20
  6. Step 6: Final answer
    x = 81,475.34

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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.