Home / 147,971.32-221,979.08-54,469.96

Finding the Fourth Proportional to 147,971.32, 221,979.08 and 54,469.96

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Solution

The fourth proportional to 147,971.32, 221,979.08 and 54,469.96 is: 81,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,971.32 : 221,979.08 = 54,469.96 : x
  2. Step 2: Convert to fraction form
    147,971.32/221,979.08 = 54,469.96/x
  3. Step 3: Cross multiply
    147,971.32x = 221,979.08 × 54,469.96
  4. Step 4: Simplify right side
    147,971.32x = 12,091,191,608.44
  5. Step 5: Solve for x
    x = 12,091,191,608.44/147,971.32
  6. Step 6: Final answer
    x = 81,713.08

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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.