Home / 161,608.05-242,243.62-90,426.32

Finding the Fourth Proportional to 161,608.05, 242,243.62 and 90,426.32

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Solution

The fourth proportional to 161,608.05, 242,243.62 and 90,426.32 is: 135,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,608.05 : 242,243.62 = 90,426.32 : x
  2. Step 2: Convert to fraction form
    161,608.05/242,243.62 = 90,426.32/x
  3. Step 3: Cross multiply
    161,608.05x = 242,243.62 × 90,426.32
  4. Step 4: Simplify right side
    161,608.05x = 21,905,198,647.95
  5. Step 5: Solve for x
    x = 21,905,198,647.95/161,608.05
  6. Step 6: Final answer
    x = 135,545.22

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1.5x scale

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.