Home / 139,998.96-193,202.55-76,340.25

Finding the Fourth Proportional to 139,998.96, 193,202.55 and 76,340.25

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Solution

The fourth proportional to 139,998.96, 193,202.55 and 76,340.25 is: 105,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,998.96 : 193,202.55 = 76,340.25 : x
  2. Step 2: Convert to fraction form
    139,998.96/193,202.55 = 76,340.25/x
  3. Step 3: Cross multiply
    139,998.96x = 193,202.55 × 76,340.25
  4. Step 4: Simplify right side
    139,998.96x = 14,749,130,967.64
  5. Step 5: Solve for x
    x = 14,749,130,967.64/139,998.96
  6. Step 6: Final answer
    x = 105,351.72

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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.