Home / 149,730.15-206,662.29-86,104.65

Finding the Fourth Proportional to 149,730.15, 206,662.29 and 86,104.65

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Solution

The fourth proportional to 149,730.15, 206,662.29 and 86,104.65 is: 118,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,730.15 : 206,662.29 = 86,104.65 : x
  2. Step 2: Convert to fraction form
    149,730.15/206,662.29 = 86,104.65/x
  3. Step 3: Cross multiply
    149,730.15x = 206,662.29 × 86,104.65
  4. Step 4: Simplify right side
    149,730.15x = 17,794,584,148.65
  5. Step 5: Solve for x
    x = 17,794,584,148.65/149,730.15
  6. Step 6: Final answer
    x = 118,844.36

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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.