Home / 141,420.27-195,131.93-79,332.75

Finding the Fourth Proportional to 141,420.27, 195,131.93 and 79,332.75

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Solution

The fourth proportional to 141,420.27, 195,131.93 and 79,332.75 is: 109,463.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,420.27 : 195,131.93 = 79,332.75 : x
  2. Step 2: Convert to fraction form
    141,420.27/195,131.93 = 79,332.75/x
  3. Step 3: Cross multiply
    141,420.27x = 195,131.93 × 79,332.75
  4. Step 4: Simplify right side
    141,420.27x = 15,480,351,247.38
  5. Step 5: Solve for x
    x = 15,480,351,247.38/141,420.27
  6. Step 6: Final answer
    x = 109,463.46

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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.