Home / 201,947.68-278,693.40-115,914.04

Finding the Fourth Proportional to 201,947.68, 278,693.40 and 115,914.04

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Solution

The fourth proportional to 201,947.68, 278,693.40 and 115,914.04 is: 159,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,947.68 : 278,693.40 = 115,914.04 : x
  2. Step 2: Convert to fraction form
    201,947.68/278,693.40 = 115,914.04/x
  3. Step 3: Cross multiply
    201,947.68x = 278,693.40 × 115,914.04
  4. Step 4: Simplify right side
    201,947.68x = 32,304,477,915.34
  5. Step 5: Solve for x
    x = 32,304,477,915.34/201,947.68
  6. Step 6: Final answer
    x = 159,964.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.