Home / 147,712.40-221,568.60-54,254.60

Finding the Fourth Proportional to 147,712.40, 221,568.60 and 54,254.60

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Solution

The fourth proportional to 147,712.40, 221,568.60 and 54,254.60 is: 81,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,712.40 : 221,568.60 = 54,254.60 : x
  2. Step 2: Convert to fraction form
    147,712.40/221,568.60 = 54,254.60/x
  3. Step 3: Cross multiply
    147,712.40x = 221,568.60 × 54,254.60
  4. Step 4: Simplify right side
    147,712.40x = 12,021,115,765.56
  5. Step 5: Solve for x
    x = 12,021,115,765.56/147,712.40
  6. Step 6: Final answer
    x = 81,381.90

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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.