Home / 129,273.40-193,909.74-40,527.28

Finding the Fourth Proportional to 129,273.40, 193,909.74 and 40,527.28

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Solution

The fourth proportional to 129,273.40, 193,909.74 and 40,527.28 is: 60,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,273.40 : 193,909.74 = 40,527.28 : x
  2. Step 2: Convert to fraction form
    129,273.40/193,909.74 = 40,527.28/x
  3. Step 3: Cross multiply
    129,273.40x = 193,909.74 × 40,527.28
  4. Step 4: Simplify right side
    129,273.40x = 7,858,634,327.71
  5. Step 5: Solve for x
    x = 7,858,634,327.71/129,273.40
  6. Step 6: Final answer
    x = 60,790.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.