Home / 140,500.68-193,888.26-76,838.28

Finding the Fourth Proportional to 140,500.68, 193,888.26 and 76,838.28

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Solution

The fourth proportional to 140,500.68, 193,888.26 and 76,838.28 is: 106,035.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,500.68 : 193,888.26 = 76,838.28 : x
  2. Step 2: Convert to fraction form
    140,500.68/193,888.26 = 76,838.28/x
  3. Step 3: Cross multiply
    140,500.68x = 193,888.26 × 76,838.28
  4. Step 4: Simplify right side
    140,500.68x = 14,898,040,410.59
  5. Step 5: Solve for x
    x = 14,898,040,410.59/140,500.68
  6. Step 6: Final answer
    x = 106,035.36

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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.