Home / 136,888.62-188,907.08-76,461.81

Finding the Fourth Proportional to 136,888.62, 188,907.08 and 76,461.81

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Solution

The fourth proportional to 136,888.62, 188,907.08 and 76,461.81 is: 105,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,888.62 : 188,907.08 = 76,461.81 : x
  2. Step 2: Convert to fraction form
    136,888.62/188,907.08 = 76,461.81/x
  3. Step 3: Cross multiply
    136,888.62x = 188,907.08 × 76,461.81
  4. Step 4: Simplify right side
    136,888.62x = 14,444,176,876.31
  5. Step 5: Solve for x
    x = 14,444,176,876.31/136,888.62
  6. Step 6: Final answer
    x = 105,517.73

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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.