Home / 135,428.16-203,273.28-65,356.80

Finding the Fourth Proportional to 135,428.16, 203,273.28 and 65,356.80

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Solution

The fourth proportional to 135,428.16, 203,273.28 and 65,356.80 is: 98,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,428.16 : 203,273.28 = 65,356.80 : x
  2. Step 2: Convert to fraction form
    135,428.16/203,273.28 = 65,356.80/x
  3. Step 3: Cross multiply
    135,428.16x = 203,273.28 × 65,356.80
  4. Step 4: Simplify right side
    135,428.16x = 13,285,291,106.30
  5. Step 5: Solve for x
    x = 13,285,291,106.30/135,428.16
  6. Step 6: Final answer
    x = 98,098.44

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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.