Home / 136,775.54-188,781.73-80,205.14

Finding the Fourth Proportional to 136,775.54, 188,781.73 and 80,205.14

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Solution

The fourth proportional to 136,775.54, 188,781.73 and 80,205.14 is: 110,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,775.54 : 188,781.73 = 80,205.14 : x
  2. Step 2: Convert to fraction form
    136,775.54/188,781.73 = 80,205.14/x
  3. Step 3: Cross multiply
    136,775.54x = 188,781.73 × 80,205.14
  4. Step 4: Simplify right side
    136,775.54x = 15,141,264,140.18
  5. Step 5: Solve for x
    x = 15,141,264,140.18/136,775.54
  6. Step 6: Final answer
    x = 110,701.55

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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.