Home / 189,568.20-284,273.34-77,172.18

Finding the Fourth Proportional to 189,568.20, 284,273.34 and 77,172.18

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Solution

The fourth proportional to 189,568.20, 284,273.34 and 77,172.18 is: 115,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,568.20 : 284,273.34 = 77,172.18 : x
  2. Step 2: Convert to fraction form
    189,568.20/284,273.34 = 77,172.18/x
  3. Step 3: Cross multiply
    189,568.20x = 284,273.34 × 77,172.18
  4. Step 4: Simplify right side
    189,568.20x = 21,937,993,363.68
  5. Step 5: Solve for x
    x = 21,937,993,363.68/189,568.20
  6. Step 6: Final answer
    x = 115,726.13

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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.