Home / 140,533.92-193,936.88-76,871.57

Finding the Fourth Proportional to 140,533.92, 193,936.88 and 76,871.57

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Solution

The fourth proportional to 140,533.92, 193,936.88 and 76,871.57 is: 106,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,533.92 : 193,936.88 = 76,871.57 : x
  2. Step 2: Convert to fraction form
    140,533.92/193,936.88 = 76,871.57/x
  3. Step 3: Cross multiply
    140,533.92x = 193,936.88 × 76,871.57
  4. Step 4: Simplify right side
    140,533.92x = 14,908,231,669.00
  5. Step 5: Solve for x
    x = 14,908,231,669.00/140,533.92
  6. Step 6: Final answer
    x = 106,082.80

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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.