Home / 147,157.40-220,563.28-68,104.64

Finding the Fourth Proportional to 147,157.40, 220,563.28 and 68,104.64

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Solution

The fourth proportional to 147,157.40, 220,563.28 and 68,104.64 is: 102,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,157.40 : 220,563.28 = 68,104.64 : x
  2. Step 2: Convert to fraction form
    147,157.40/220,563.28 = 68,104.64/x
  3. Step 3: Cross multiply
    147,157.40x = 220,563.28 × 68,104.64
  4. Step 4: Simplify right side
    147,157.40x = 15,021,382,781.62
  5. Step 5: Solve for x
    x = 15,021,382,781.62/147,157.40
  6. Step 6: Final answer
    x = 102,076.98

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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.