Home / 139,864.95-193,015.85-76,202.73

Finding the Fourth Proportional to 139,864.95, 193,015.85 and 76,202.73

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Solution

The fourth proportional to 139,864.95, 193,015.85 and 76,202.73 is: 105,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,864.95 : 193,015.85 = 76,202.73 : x
  2. Step 2: Convert to fraction form
    139,864.95/193,015.85 = 76,202.73/x
  3. Step 3: Cross multiply
    139,864.95x = 193,015.85 × 76,202.73
  4. Step 4: Simplify right side
    139,864.95x = 14,708,334,322.26
  5. Step 5: Solve for x
    x = 14,708,334,322.26/139,864.95
  6. Step 6: Final answer
    x = 105,160.97

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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.