Home / 131,639.12-197,483.16-52,759.48

Finding the Fourth Proportional to 131,639.12, 197,483.16 and 52,759.48

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Solution

The fourth proportional to 131,639.12, 197,483.16 and 52,759.48 is: 79,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,639.12 : 197,483.16 = 52,759.48 : x
  2. Step 2: Convert to fraction form
    131,639.12/197,483.16 = 52,759.48/x
  3. Step 3: Cross multiply
    131,639.12x = 197,483.16 × 52,759.48
  4. Step 4: Simplify right side
    131,639.12x = 10,419,108,830.36
  5. Step 5: Solve for x
    x = 10,419,108,830.36/131,639.12
  6. Step 6: Final answer
    x = 79,149.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.