Home / 189,520.54-284,264.39-77,212.62

Finding the Fourth Proportional to 189,520.54, 284,264.39 and 77,212.62

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Solution

The fourth proportional to 189,520.54, 284,264.39 and 77,212.62 is: 115,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,520.54 : 284,264.39 = 77,212.62 : x
  2. Step 2: Convert to fraction form
    189,520.54/284,264.39 = 77,212.62/x
  3. Step 3: Cross multiply
    189,520.54x = 284,264.39 × 77,212.62
  4. Step 4: Simplify right side
    189,520.54x = 21,948,798,517.63
  5. Step 5: Solve for x
    x = 21,948,798,517.63/189,520.54
  6. Step 6: Final answer
    x = 115,812.24

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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.