Home / 136,403.46-188,242.62-75,974.12

Finding the Fourth Proportional to 136,403.46, 188,242.62 and 75,974.12

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Solution

The fourth proportional to 136,403.46, 188,242.62 and 75,974.12 is: 104,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,403.46 : 188,242.62 = 75,974.12 : x
  2. Step 2: Convert to fraction form
    136,403.46/188,242.62 = 75,974.12/x
  3. Step 3: Cross multiply
    136,403.46x = 188,242.62 × 75,974.12
  4. Step 4: Simplify right side
    136,403.46x = 14,301,566,880.79
  5. Step 5: Solve for x
    x = 14,301,566,880.79/136,403.46
  6. Step 6: Final answer
    x = 104,847.54

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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.