Home / 140,520.24-193,916.52-76,859.28

Finding the Fourth Proportional to 140,520.24, 193,916.52 and 76,859.28

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Solution

The fourth proportional to 140,520.24, 193,916.52 and 76,859.28 is: 106,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,520.24 : 193,916.52 = 76,859.28 : x
  2. Step 2: Convert to fraction form
    140,520.24/193,916.52 = 76,859.28/x
  3. Step 3: Cross multiply
    140,520.24x = 193,916.52 × 76,859.28
  4. Step 4: Simplify right side
    140,520.24x = 14,904,284,107.31
  5. Step 5: Solve for x
    x = 14,904,284,107.31/140,520.24
  6. Step 6: Final answer
    x = 106,065.03

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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.