Home / 131,420.54-197,147.22-51,448.18

Finding the Fourth Proportional to 131,420.54, 197,147.22 and 51,448.18

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Solution

The fourth proportional to 131,420.54, 197,147.22 and 51,448.18 is: 77,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,420.54 : 197,147.22 = 51,448.18 : x
  2. Step 2: Convert to fraction form
    131,420.54/197,147.22 = 51,448.18/x
  3. Step 3: Cross multiply
    131,420.54x = 197,147.22 × 51,448.18
  4. Step 4: Simplify right side
    131,420.54x = 10,142,865,661.06
  5. Step 5: Solve for x
    x = 10,142,865,661.06/131,420.54
  6. Step 6: Final answer
    x = 77,178.69

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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.