Home / 140,782.92-194,280.66-77,119.32

Finding the Fourth Proportional to 140,782.92, 194,280.66 and 77,119.32

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Solution

The fourth proportional to 140,782.92, 194,280.66 and 77,119.32 is: 106,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,782.92 : 194,280.66 = 77,119.32 : x
  2. Step 2: Convert to fraction form
    140,782.92/194,280.66 = 77,119.32/x
  3. Step 3: Cross multiply
    140,782.92x = 194,280.66 × 77,119.32
  4. Step 4: Simplify right side
    140,782.92x = 14,982,792,388.35
  5. Step 5: Solve for x
    x = 14,982,792,388.35/140,782.92
  6. Step 6: Final answer
    x = 106,424.79

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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.