Home / 120,523.73-180,787.49-45,623.77

Finding the Fourth Proportional to 120,523.73, 180,787.49 and 45,623.77

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Solution

The fourth proportional to 120,523.73, 180,787.49 and 45,623.77 is: 68,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,523.73 : 180,787.49 = 45,623.77 : x
  2. Step 2: Convert to fraction form
    120,523.73/180,787.49 = 45,623.77/x
  3. Step 3: Cross multiply
    120,523.73x = 180,787.49 × 45,623.77
  4. Step 4: Simplify right side
    120,523.73x = 8,248,206,862.64
  5. Step 5: Solve for x
    x = 8,248,206,862.64/120,523.73
  6. Step 6: Final answer
    x = 68,436.37

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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.