Home / 136,775.53-188,781.72-80,205.13

Finding the Fourth Proportional to 136,775.53, 188,781.72 and 80,205.13

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Solution

The fourth proportional to 136,775.53, 188,781.72 and 80,205.13 is: 110,701.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,775.53 : 188,781.72 = 80,205.13 : x
  2. Step 2: Convert to fraction form
    136,775.53/188,781.72 = 80,205.13/x
  3. Step 3: Cross multiply
    136,775.53x = 188,781.72 × 80,205.13
  4. Step 4: Simplify right side
    136,775.53x = 15,141,262,394.22
  5. Step 5: Solve for x
    x = 15,141,262,394.22/136,775.53
  6. Step 6: Final answer
    x = 110,701.54

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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.