Home / 143,490.11-198,024.23-79,826.54

Finding the Fourth Proportional to 143,490.11, 198,024.23 and 79,826.54

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Solution

The fourth proportional to 143,490.11, 198,024.23 and 79,826.54 is: 110,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,490.11 : 198,024.23 = 79,826.54 : x
  2. Step 2: Convert to fraction form
    143,490.11/198,024.23 = 79,826.54/x
  3. Step 3: Cross multiply
    143,490.11x = 198,024.23 × 79,826.54
  4. Step 4: Simplify right side
    143,490.11x = 15,807,588,717.93
  5. Step 5: Solve for x
    x = 15,807,588,717.93/143,490.11
  6. Step 6: Final answer
    x = 110,165.01

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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.