Home / 120,523.81-180,787.54-45,623.85

Finding the Fourth Proportional to 120,523.81, 180,787.54 and 45,623.85

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Solution

The fourth proportional to 120,523.81, 180,787.54 and 45,623.85 is: 68,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,523.81 : 180,787.54 = 45,623.85 : x
  2. Step 2: Convert to fraction form
    120,523.81/180,787.54 = 45,623.85/x
  3. Step 3: Cross multiply
    120,523.81x = 180,787.54 × 45,623.85
  4. Step 4: Simplify right side
    120,523.81x = 8,248,222,900.36
  5. Step 5: Solve for x
    x = 8,248,222,900.36/120,523.81
  6. Step 6: Final answer
    x = 68,436.46

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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.