Home / 148,360.68-204,737.84-87,961.12

Finding the Fourth Proportional to 148,360.68, 204,737.84 and 87,961.12

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Solution

The fourth proportional to 148,360.68, 204,737.84 and 87,961.12 is: 121,386.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,360.68 : 204,737.84 = 87,961.12 : x
  2. Step 2: Convert to fraction form
    148,360.68/204,737.84 = 87,961.12/x
  3. Step 3: Cross multiply
    148,360.68x = 204,737.84 × 87,961.12
  4. Step 4: Simplify right side
    148,360.68x = 18,008,969,712.78
  5. Step 5: Solve for x
    x = 18,008,969,712.78/148,360.68
  6. Step 6: Final answer
    x = 121,386.41

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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.