Home / 136,626.64-188,544.40-76,197.36

Finding the Fourth Proportional to 136,626.64, 188,544.40 and 76,197.36

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Solution

The fourth proportional to 136,626.64, 188,544.40 and 76,197.36 is: 105,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,626.64 : 188,544.40 = 76,197.36 : x
  2. Step 2: Convert to fraction form
    136,626.64/188,544.40 = 76,197.36/x
  3. Step 3: Cross multiply
    136,626.64x = 188,544.40 × 76,197.36
  4. Step 4: Simplify right side
    136,626.64x = 14,366,585,522.78
  5. Step 5: Solve for x
    x = 14,366,585,522.78/136,626.64
  6. Step 6: Final answer
    x = 105,152.15

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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.