Home / 123,884.76-170,972.40-70,172.04

Finding the Fourth Proportional to 123,884.76, 170,972.40 and 70,172.04

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Solution

The fourth proportional to 123,884.76, 170,972.40 and 70,172.04 is: 96,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,884.76 : 170,972.40 = 70,172.04 : x
  2. Step 2: Convert to fraction form
    123,884.76/170,972.40 = 70,172.04/x
  3. Step 3: Cross multiply
    123,884.76x = 170,972.40 × 70,172.04
  4. Step 4: Simplify right side
    123,884.76x = 11,997,482,091.70
  5. Step 5: Solve for x
    x = 11,997,482,091.70/123,884.76
  6. Step 6: Final answer
    x = 96,843.89

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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.