Home / 115,150.82-158,908.46-66,762.14

Finding the Fourth Proportional to 115,150.82, 158,908.46 and 66,762.14

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Solution

The fourth proportional to 115,150.82, 158,908.46 and 66,762.14 is: 92,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,150.82 : 158,908.46 = 66,762.14 : x
  2. Step 2: Convert to fraction form
    115,150.82/158,908.46 = 66,762.14/x
  3. Step 3: Cross multiply
    115,150.82x = 158,908.46 × 66,762.14
  4. Step 4: Simplify right side
    115,150.82x = 10,609,067,725.35
  5. Step 5: Solve for x
    x = 10,609,067,725.35/115,150.82
  6. Step 6: Final answer
    x = 92,131.93

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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.