Home / 149,730.16-206,662.28-86,104.66

Finding the Fourth Proportional to 149,730.16, 206,662.28 and 86,104.66

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Solution

The fourth proportional to 149,730.16, 206,662.28 and 86,104.66 is: 118,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,730.16 : 206,662.28 = 86,104.66 : x
  2. Step 2: Convert to fraction form
    149,730.16/206,662.28 = 86,104.66/x
  3. Step 3: Cross multiply
    149,730.16x = 206,662.28 × 86,104.66
  4. Step 4: Simplify right side
    149,730.16x = 17,794,585,354.22
  5. Step 5: Solve for x
    x = 17,794,585,354.22/149,730.16
  6. Step 6: Final answer
    x = 118,844.36

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1.5x scale

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.