Home / 147,832.40-221,748.60-54,318.80

Finding the Fourth Proportional to 147,832.40, 221,748.60 and 54,318.80

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Solution

The fourth proportional to 147,832.40, 221,748.60 and 54,318.80 is: 81,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,832.40 : 221,748.60 = 54,318.80 : x
  2. Step 2: Convert to fraction form
    147,832.40/221,748.60 = 54,318.80/x
  3. Step 3: Cross multiply
    147,832.40x = 221,748.60 × 54,318.80
  4. Step 4: Simplify right side
    147,832.40x = 12,045,117,853.68
  5. Step 5: Solve for x
    x = 12,045,117,853.68/147,832.40
  6. Step 6: Final answer
    x = 81,478.20

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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.