Home / 102,354.99-141,260.30-57,040.35

Finding the Fourth Proportional to 102,354.99, 141,260.30 and 57,040.35

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Solution

The fourth proportional to 102,354.99, 141,260.30 and 57,040.35 is: 78,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,354.99 : 141,260.30 = 57,040.35 : x
  2. Step 2: Convert to fraction form
    102,354.99/141,260.30 = 57,040.35/x
  3. Step 3: Cross multiply
    102,354.99x = 141,260.30 × 57,040.35
  4. Step 4: Simplify right side
    102,354.99x = 8,057,536,667.90
  5. Step 5: Solve for x
    x = 8,057,536,667.90/102,354.99
  6. Step 6: Final answer
    x = 78,721.48

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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.