Home / 136,225.36-187,976.28-75,786.40

Finding the Fourth Proportional to 136,225.36, 187,976.28 and 75,786.40

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Solution

The fourth proportional to 136,225.36, 187,976.28 and 75,786.40 is: 104,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,225.36 : 187,976.28 = 75,786.40 : x
  2. Step 2: Convert to fraction form
    136,225.36/187,976.28 = 75,786.40/x
  3. Step 3: Cross multiply
    136,225.36x = 187,976.28 × 75,786.40
  4. Step 4: Simplify right side
    136,225.36x = 14,246,045,546.59
  5. Step 5: Solve for x
    x = 14,246,045,546.59/136,225.36
  6. Step 6: Final answer
    x = 104,577.04

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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.