Home / 140,177.40-193,447.98-79,745.64

Finding the Fourth Proportional to 140,177.40, 193,447.98 and 79,745.64

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Solution

The fourth proportional to 140,177.40, 193,447.98 and 79,745.64 is: 110,050.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,177.40 : 193,447.98 = 79,745.64 : x
  2. Step 2: Convert to fraction form
    140,177.40/193,447.98 = 79,745.64/x
  3. Step 3: Cross multiply
    140,177.40x = 193,447.98 × 79,745.64
  4. Step 4: Simplify right side
    140,177.40x = 15,426,632,971.81
  5. Step 5: Solve for x
    x = 15,426,632,971.81/140,177.40
  6. Step 6: Final answer
    x = 110,050.79

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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.