Home / 139,552.13-192,586.28-79,125.32

Finding the Fourth Proportional to 139,552.13, 192,586.28 and 79,125.32

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Solution

The fourth proportional to 139,552.13, 192,586.28 and 79,125.32 is: 109,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,552.13 : 192,586.28 = 79,125.32 : x
  2. Step 2: Convert to fraction form
    139,552.13/192,586.28 = 79,125.32/x
  3. Step 3: Cross multiply
    139,552.13x = 192,586.28 × 79,125.32
  4. Step 4: Simplify right side
    139,552.13x = 15,238,451,118.45
  5. Step 5: Solve for x
    x = 15,238,451,118.45/139,552.13
  6. Step 6: Final answer
    x = 109,195.40

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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.