Home / 141,829.30-195,721.90-77,299.12

Finding the Fourth Proportional to 141,829.30, 195,721.90 and 77,299.12

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Solution

The fourth proportional to 141,829.30, 195,721.90 and 77,299.12 is: 106,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,829.30 : 195,721.90 = 77,299.12 : x
  2. Step 2: Convert to fraction form
    141,829.30/195,721.90 = 77,299.12/x
  3. Step 3: Cross multiply
    141,829.30x = 195,721.90 × 77,299.12
  4. Step 4: Simplify right side
    141,829.30x = 15,129,130,634.73
  5. Step 5: Solve for x
    x = 15,129,130,634.73/141,829.30
  6. Step 6: Final answer
    x = 106,671.40

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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.