Home / 131,619.30-197,428.95-103,625.70

Finding the Fourth Proportional to 131,619.30, 197,428.95 and 103,625.70

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Solution

The fourth proportional to 131,619.30, 197,428.95 and 103,625.70 is: 155,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,619.30 : 197,428.95 = 103,625.70 : x
  2. Step 2: Convert to fraction form
    131,619.30/197,428.95 = 103,625.70/x
  3. Step 3: Cross multiply
    131,619.30x = 197,428.95 × 103,625.70
  4. Step 4: Simplify right side
    131,619.30x = 20,458,713,144.02
  5. Step 5: Solve for x
    x = 20,458,713,144.02/131,619.30
  6. Step 6: Final answer
    x = 155,438.55

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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.