Home / 141,428.76-195,170.22-105,291.78

Finding the Fourth Proportional to 141,428.76, 195,170.22 and 105,291.78

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Solution

The fourth proportional to 141,428.76, 195,170.22 and 105,291.78 is: 145,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,428.76 : 195,170.22 = 105,291.78 : x
  2. Step 2: Convert to fraction form
    141,428.76/195,170.22 = 105,291.78/x
  3. Step 3: Cross multiply
    141,428.76x = 195,170.22 × 105,291.78
  4. Step 4: Simplify right side
    141,428.76x = 20,549,819,866.79
  5. Step 5: Solve for x
    x = 20,549,819,866.79/141,428.76
  6. Step 6: Final answer
    x = 145,301.56

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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.