Home / 139,866.45-193,017.92-76,204.23

Finding the Fourth Proportional to 139,866.45, 193,017.92 and 76,204.23

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Solution

The fourth proportional to 139,866.45, 193,017.92 and 76,204.23 is: 105,163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,866.45 : 193,017.92 = 76,204.23 : x
  2. Step 2: Convert to fraction form
    139,866.45/193,017.92 = 76,204.23/x
  3. Step 3: Cross multiply
    139,866.45x = 193,017.92 × 76,204.23
  4. Step 4: Simplify right side
    139,866.45x = 14,708,781,588.78
  5. Step 5: Solve for x
    x = 14,708,781,588.78/139,866.45
  6. Step 6: Final answer
    x = 105,163.04

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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.