Home / 123,579.39-185,383.67-92,611.47

Finding the Fourth Proportional to 123,579.39, 185,383.67 and 92,611.47

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Solution

The fourth proportional to 123,579.39, 185,383.67 and 92,611.47 is: 138,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,579.39 : 185,383.67 = 92,611.47 : x
  2. Step 2: Convert to fraction form
    123,579.39/185,383.67 = 92,611.47/x
  3. Step 3: Cross multiply
    123,579.39x = 185,383.67 × 92,611.47
  4. Step 4: Simplify right side
    123,579.39x = 17,168,653,729.64
  5. Step 5: Solve for x
    x = 17,168,653,729.64/123,579.39
  6. Step 6: Final answer
    x = 138,928.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.