Home / 112,131.16-154,723.32-66,808.01

Finding the Fourth Proportional to 112,131.16, 154,723.32 and 66,808.01

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Solution

The fourth proportional to 112,131.16, 154,723.32 and 66,808.01 is: 92,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,131.16 : 154,723.32 = 66,808.01 : x
  2. Step 2: Convert to fraction form
    112,131.16/154,723.32 = 66,808.01/x
  3. Step 3: Cross multiply
    112,131.16x = 154,723.32 × 66,808.01
  4. Step 4: Simplify right side
    112,131.16x = 10,336,757,496.60
  5. Step 5: Solve for x
    x = 10,336,757,496.60/112,131.16
  6. Step 6: Final answer
    x = 92,184.53

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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.