Home / 136,691.04-188,598.06-80,072.04

Finding the Fourth Proportional to 136,691.04, 188,598.06 and 80,072.04

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Solution

The fourth proportional to 136,691.04, 188,598.06 and 80,072.04 is: 110,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,691.04 : 188,598.06 = 80,072.04 : x
  2. Step 2: Convert to fraction form
    136,691.04/188,598.06 = 80,072.04/x
  3. Step 3: Cross multiply
    136,691.04x = 188,598.06 × 80,072.04
  4. Step 4: Simplify right side
    136,691.04x = 15,101,431,404.24
  5. Step 5: Solve for x
    x = 15,101,431,404.24/136,691.04
  6. Step 6: Final answer
    x = 110,478.58

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1.5x scale

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.