Home / 140,561.28-193,971.24-76,899.60

Finding the Fourth Proportional to 140,561.28, 193,971.24 and 76,899.60

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Solution

The fourth proportional to 140,561.28, 193,971.24 and 76,899.60 is: 106,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,561.28 : 193,971.24 = 76,899.60 : x
  2. Step 2: Convert to fraction form
    140,561.28/193,971.24 = 76,899.60/x
  3. Step 3: Cross multiply
    140,561.28x = 193,971.24 × 76,899.60
  4. Step 4: Simplify right side
    140,561.28x = 14,916,310,767.50
  5. Step 5: Solve for x
    x = 14,916,310,767.50/140,561.28
  6. Step 6: Final answer
    x = 106,119.63

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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.