Home / 136,642.39-188,494.80-111,177.22

Finding the Fourth Proportional to 136,642.39, 188,494.80 and 111,177.22

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Solution

The fourth proportional to 136,642.39, 188,494.80 and 111,177.22 is: 153,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,642.39 : 188,494.80 = 111,177.22 : x
  2. Step 2: Convert to fraction form
    136,642.39/188,494.80 = 111,177.22/x
  3. Step 3: Cross multiply
    136,642.39x = 188,494.80 × 111,177.22
  4. Step 4: Simplify right side
    136,642.39x = 20,956,327,848.46
  5. Step 5: Solve for x
    x = 20,956,327,848.46/136,642.39
  6. Step 6: Final answer
    x = 153,366.23

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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.