Home / 140,219.28-193,501.64-76,556.88

Finding the Fourth Proportional to 140,219.28, 193,501.64 and 76,556.88

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Solution

The fourth proportional to 140,219.28, 193,501.64 and 76,556.88 is: 105,647.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,219.28 : 193,501.64 = 76,556.88 : x
  2. Step 2: Convert to fraction form
    140,219.28/193,501.64 = 76,556.88/x
  3. Step 3: Cross multiply
    140,219.28x = 193,501.64 × 76,556.88
  4. Step 4: Simplify right side
    140,219.28x = 14,813,881,833.28
  5. Step 5: Solve for x
    x = 14,813,881,833.28/140,219.28
  6. Step 6: Final answer
    x = 105,647.97

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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.