Home / 198,172.91-273,705.75-130,492.45

Finding the Fourth Proportional to 198,172.91, 273,705.75 and 130,492.45

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Solution

The fourth proportional to 198,172.91, 273,705.75 and 130,492.45 is: 180,229.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,172.91 : 273,705.75 = 130,492.45 : x
  2. Step 2: Convert to fraction form
    198,172.91/273,705.75 = 130,492.45/x
  3. Step 3: Cross multiply
    198,172.91x = 273,705.75 × 130,492.45
  4. Step 4: Simplify right side
    198,172.91x = 35,716,533,896.59
  5. Step 5: Solve for x
    x = 35,716,533,896.59/198,172.91
  6. Step 6: Final answer
    x = 180,229.14

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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.