Home / 189,578.40-284,246.10-89,608.20

Finding the Fourth Proportional to 189,578.40, 284,246.10 and 89,608.20

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Solution

The fourth proportional to 189,578.40, 284,246.10 and 89,608.20 is: 134,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,578.40 : 284,246.10 = 89,608.20 : x
  2. Step 2: Convert to fraction form
    189,578.40/284,246.10 = 89,608.20/x
  3. Step 3: Cross multiply
    189,578.40x = 284,246.10 × 89,608.20
  4. Step 4: Simplify right side
    189,578.40x = 25,470,781,378.02
  5. Step 5: Solve for x
    x = 25,470,781,378.02/189,578.40
  6. Step 6: Final answer
    x = 134,354.87

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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.