Home / 131,285.25-181,162.85-73,906.25

Finding the Fourth Proportional to 131,285.25, 181,162.85 and 73,906.25

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Solution

The fourth proportional to 131,285.25, 181,162.85 and 73,906.25 is: 101,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,285.25 : 181,162.85 = 73,906.25 : x
  2. Step 2: Convert to fraction form
    131,285.25/181,162.85 = 73,906.25/x
  3. Step 3: Cross multiply
    131,285.25x = 181,162.85 × 73,906.25
  4. Step 4: Simplify right side
    131,285.25x = 13,389,065,607.47
  5. Step 5: Solve for x
    x = 13,389,065,607.47/131,285.25
  6. Step 6: Final answer
    x = 101,984.54

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1.5x scale

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.