Home / 102,161.06-140,902.38-66,362.62

Finding the Fourth Proportional to 102,161.06, 140,902.38 and 66,362.62

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Solution

The fourth proportional to 102,161.06, 140,902.38 and 66,362.62 is: 91,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,161.06 : 140,902.38 = 66,362.62 : x
  2. Step 2: Convert to fraction form
    102,161.06/140,902.38 = 66,362.62/x
  3. Step 3: Cross multiply
    102,161.06x = 140,902.38 × 66,362.62
  4. Step 4: Simplify right side
    102,161.06x = 9,350,651,101.04
  5. Step 5: Solve for x
    x = 9,350,651,101.04/102,161.06
  6. Step 6: Final answer
    x = 91,528.52

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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.