Home / 131,596.72-181,390.18-102,865.62

Finding the Fourth Proportional to 131,596.72, 181,390.18 and 102,865.62

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Solution

The fourth proportional to 131,596.72, 181,390.18 and 102,865.62 is: 141,787.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,596.72 : 181,390.18 = 102,865.62 : x
  2. Step 2: Convert to fraction form
    131,596.72/181,390.18 = 102,865.62/x
  3. Step 3: Cross multiply
    131,596.72x = 181,390.18 × 102,865.62
  4. Step 4: Simplify right side
    131,596.72x = 18,658,813,327.61
  5. Step 5: Solve for x
    x = 18,658,813,327.61/131,596.72
  6. Step 6: Final answer
    x = 141,787.83

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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.