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Finding the Fourth Proportional to 109,959.30, 164,865.04 and 43,365.15

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Solution

The fourth proportional to 109,959.30, 164,865.04 and 43,365.15 is: 65,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,959.30 : 164,865.04 = 43,365.15 : x
  2. Step 2: Convert to fraction form
    109,959.30/164,865.04 = 43,365.15/x
  3. Step 3: Cross multiply
    109,959.30x = 164,865.04 × 43,365.15
  4. Step 4: Simplify right side
    109,959.30x = 7,149,397,080.94
  5. Step 5: Solve for x
    x = 7,149,397,080.94/109,959.30
  6. Step 6: Final answer
    x = 65,018.58

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1.5x scale

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.