Home / 136,211.11-187,973.06-74,964.35

Finding the Fourth Proportional to 136,211.11, 187,973.06 and 74,964.35

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Solution

The fourth proportional to 136,211.11, 187,973.06 and 74,964.35 is: 103,451.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,211.11 : 187,973.06 = 74,964.35 : x
  2. Step 2: Convert to fraction form
    136,211.11/187,973.06 = 74,964.35/x
  3. Step 3: Cross multiply
    136,211.11x = 187,973.06 × 74,964.35
  4. Step 4: Simplify right side
    136,211.11x = 14,091,278,260.41
  5. Step 5: Solve for x
    x = 14,091,278,260.41/136,211.11
  6. Step 6: Final answer
    x = 103,451.75

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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.