Home / 141,697.81-195,544.29-78,035.86

Finding the Fourth Proportional to 141,697.81, 195,544.29 and 78,035.86

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Solution

The fourth proportional to 141,697.81, 195,544.29 and 78,035.86 is: 107,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,697.81 : 195,544.29 = 78,035.86 : x
  2. Step 2: Convert to fraction form
    141,697.81/195,544.29 = 78,035.86/x
  3. Step 3: Cross multiply
    141,697.81x = 195,544.29 × 78,035.86
  4. Step 4: Simplify right side
    141,697.81x = 15,259,466,838.24
  5. Step 5: Solve for x
    x = 15,259,466,838.24/141,697.81
  6. Step 6: Final answer
    x = 107,690.21

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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.