Home / 135,004.75-186,298.83-80,618.29

Finding the Fourth Proportional to 135,004.75, 186,298.83 and 80,618.29

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Solution

The fourth proportional to 135,004.75, 186,298.83 and 80,618.29 is: 111,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,004.75 : 186,298.83 = 80,618.29 : x
  2. Step 2: Convert to fraction form
    135,004.75/186,298.83 = 80,618.29/x
  3. Step 3: Cross multiply
    135,004.75x = 186,298.83 × 80,618.29
  4. Step 4: Simplify right side
    135,004.75x = 15,019,092,172.11
  5. Step 5: Solve for x
    x = 15,019,092,172.11/135,004.75
  6. Step 6: Final answer
    x = 111,248.62

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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.