Home / 136,825.04-188,766.56-83,089.76

Finding the Fourth Proportional to 136,825.04, 188,766.56 and 83,089.76

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Solution

The fourth proportional to 136,825.04, 188,766.56 and 83,089.76 is: 114,632.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,825.04 : 188,766.56 = 83,089.76 : x
  2. Step 2: Convert to fraction form
    136,825.04/188,766.56 = 83,089.76/x
  3. Step 3: Cross multiply
    136,825.04x = 188,766.56 × 83,089.76
  4. Step 4: Simplify right side
    136,825.04x = 15,684,568,166.43
  5. Step 5: Solve for x
    x = 15,684,568,166.43/136,825.04
  6. Step 6: Final answer
    x = 114,632.29

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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.