Home / 136,891.23-188,907.90-76,462.74

Finding the Fourth Proportional to 136,891.23, 188,907.90 and 76,462.74

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Solution

The fourth proportional to 136,891.23, 188,907.90 and 76,462.74 is: 105,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,891.23 : 188,907.90 = 76,462.74 : x
  2. Step 2: Convert to fraction form
    136,891.23/188,907.90 = 76,462.74/x
  3. Step 3: Cross multiply
    136,891.23x = 188,907.90 × 76,462.74
  4. Step 4: Simplify right side
    136,891.23x = 14,444,415,641.65
  5. Step 5: Solve for x
    x = 14,444,415,641.65/136,891.23
  6. Step 6: Final answer
    x = 105,517.47

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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.