Home / 141,409.46-195,117.06-79,321.94

Finding the Fourth Proportional to 141,409.46, 195,117.06 and 79,321.94

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Solution

The fourth proportional to 141,409.46, 195,117.06 and 79,321.94 is: 109,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,409.46 : 195,117.06 = 79,321.94 : x
  2. Step 2: Convert to fraction form
    141,409.46/195,117.06 = 79,321.94/x
  3. Step 3: Cross multiply
    141,409.46x = 195,117.06 × 79,321.94
  4. Step 4: Simplify right side
    141,409.46x = 15,477,062,750.71
  5. Step 5: Solve for x
    x = 15,477,062,750.71/141,409.46
  6. Step 6: Final answer
    x = 109,448.57

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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.