Home / 136,641.06-205,039.35-109,114.02

Finding the Fourth Proportional to 136,641.06, 205,039.35 and 109,114.02

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Solution

The fourth proportional to 136,641.06, 205,039.35 and 109,114.02 is: 163,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,641.06 : 205,039.35 = 109,114.02 : x
  2. Step 2: Convert to fraction form
    136,641.06/205,039.35 = 109,114.02/x
  3. Step 3: Cross multiply
    136,641.06x = 205,039.35 × 109,114.02
  4. Step 4: Simplify right side
    136,641.06x = 22,372,667,736.69
  5. Step 5: Solve for x
    x = 22,372,667,736.69/136,641.06
  6. Step 6: Final answer
    x = 163,733.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.