Home / 131,861.61-181,968.24-71,433.41

Finding the Fourth Proportional to 131,861.61, 181,968.24 and 71,433.41

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Solution

The fourth proportional to 131,861.61, 181,968.24 and 71,433.41 is: 98,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,861.61 : 181,968.24 = 71,433.41 : x
  2. Step 2: Convert to fraction form
    131,861.61/181,968.24 = 71,433.41/x
  3. Step 3: Cross multiply
    131,861.61x = 181,968.24 × 71,433.41
  4. Step 4: Simplify right side
    131,861.61x = 12,998,611,252.93
  5. Step 5: Solve for x
    x = 12,998,611,252.93/131,861.61
  6. Step 6: Final answer
    x = 98,577.68

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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.