Home / 148,840.37-205,398.89-80,856.80

Finding the Fourth Proportional to 148,840.37, 205,398.89 and 80,856.80

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Solution

The fourth proportional to 148,840.37, 205,398.89 and 80,856.80 is: 111,581.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,840.37 : 205,398.89 = 80,856.80 : x
  2. Step 2: Convert to fraction form
    148,840.37/205,398.89 = 80,856.80/x
  3. Step 3: Cross multiply
    148,840.37x = 205,398.89 × 80,856.80
  4. Step 4: Simplify right side
    148,840.37x = 16,607,896,611.13
  5. Step 5: Solve for x
    x = 16,607,896,611.13/148,840.37
  6. Step 6: Final answer
    x = 111,581.94

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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.