Home / 134,659.49-185,830.04-74,231.12

Finding the Fourth Proportional to 134,659.49, 185,830.04 and 74,231.12

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Solution

The fourth proportional to 134,659.49, 185,830.04 and 74,231.12 is: 102,438.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,659.49 : 185,830.04 = 74,231.12 : x
  2. Step 2: Convert to fraction form
    134,659.49/185,830.04 = 74,231.12/x
  3. Step 3: Cross multiply
    134,659.49x = 185,830.04 × 74,231.12
  4. Step 4: Simplify right side
    134,659.49x = 13,794,370,698.54
  5. Step 5: Solve for x
    x = 13,794,370,698.54/134,659.49
  6. Step 6: Final answer
    x = 102,438.91

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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.