Home / 140,574.55-193,993.39-76,912.35

Finding the Fourth Proportional to 140,574.55, 193,993.39 and 76,912.35

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Solution

The fourth proportional to 140,574.55, 193,993.39 and 76,912.35 is: 106,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,574.55 : 193,993.39 = 76,912.35 : x
  2. Step 2: Convert to fraction form
    140,574.55/193,993.39 = 76,912.35/x
  3. Step 3: Cross multiply
    140,574.55x = 193,993.39 × 76,912.35
  4. Step 4: Simplify right side
    140,574.55x = 14,920,487,258.99
  5. Step 5: Solve for x
    x = 14,920,487,258.99/140,574.55
  6. Step 6: Final answer
    x = 106,139.32

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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.