Home / 112,209.26-154,796.63-66,861.81

Finding the Fourth Proportional to 112,209.26, 154,796.63 and 66,861.81

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Solution

The fourth proportional to 112,209.26, 154,796.63 and 66,861.81 is: 92,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,209.26 : 154,796.63 = 66,861.81 : x
  2. Step 2: Convert to fraction form
    112,209.26/154,796.63 = 66,861.81/x
  3. Step 3: Cross multiply
    112,209.26x = 154,796.63 × 66,861.81
  4. Step 4: Simplify right side
    112,209.26x = 10,349,982,529.39
  5. Step 5: Solve for x
    x = 10,349,982,529.39/112,209.26
  6. Step 6: Final answer
    x = 92,238.23

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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.