Home / 136,891.74-188,908.57-76,463.27

Finding the Fourth Proportional to 136,891.74, 188,908.57 and 76,463.27

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Solution

The fourth proportional to 136,891.74, 188,908.57 and 76,463.27 is: 105,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,891.74 : 188,908.57 = 76,463.27 : x
  2. Step 2: Convert to fraction form
    136,891.74/188,908.57 = 76,463.27/x
  3. Step 3: Cross multiply
    136,891.74x = 188,908.57 × 76,463.27
  4. Step 4: Simplify right side
    136,891.74x = 14,444,566,993.22
  5. Step 5: Solve for x
    x = 14,444,566,993.22/136,891.74
  6. Step 6: Final answer
    x = 105,518.18

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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.