Home / 131,899.54-197,686.88-75,021.14

Finding the Fourth Proportional to 131,899.54, 197,686.88 and 75,021.14

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Solution

The fourth proportional to 131,899.54, 197,686.88 and 75,021.14 is: 112,439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,899.54 : 197,686.88 = 75,021.14 : x
  2. Step 2: Convert to fraction form
    131,899.54/197,686.88 = 75,021.14/x
  3. Step 3: Cross multiply
    131,899.54x = 197,686.88 × 75,021.14
  4. Step 4: Simplify right side
    131,899.54x = 14,830,694,112.21
  5. Step 5: Solve for x
    x = 14,830,694,112.21/131,899.54
  6. Step 6: Final answer
    x = 112,439.32

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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.