Home / 198,307.20-273,588.64-130,360.80

Finding the Fourth Proportional to 198,307.20, 273,588.64 and 130,360.80

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Solution

The fourth proportional to 198,307.20, 273,588.64 and 130,360.80 is: 179,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,307.20 : 273,588.64 = 130,360.80 : x
  2. Step 2: Convert to fraction form
    198,307.20/273,588.64 = 130,360.80/x
  3. Step 3: Cross multiply
    198,307.20x = 273,588.64 × 130,360.80
  4. Step 4: Simplify right side
    198,307.20x = 35,665,233,981.31
  5. Step 5: Solve for x
    x = 35,665,233,981.31/198,307.20
  6. Step 6: Final answer
    x = 179,848.41

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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.