Home / 141,415.28-195,125.08-79,327.74

Finding the Fourth Proportional to 141,415.28, 195,125.08 and 79,327.74

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Solution

The fourth proportional to 141,415.28, 195,125.08 and 79,327.74 is: 109,456.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,415.28 : 195,125.08 = 79,327.74 : x
  2. Step 2: Convert to fraction form
    141,415.28/195,125.08 = 79,327.74/x
  3. Step 3: Cross multiply
    141,415.28x = 195,125.08 × 79,327.74
  4. Step 4: Simplify right side
    141,415.28x = 15,478,831,613.72
  5. Step 5: Solve for x
    x = 15,478,831,613.72/141,415.28
  6. Step 6: Final answer
    x = 109,456.57

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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.