Home / 124,861.79-187,205.19-45,965.78

Finding the Fourth Proportional to 124,861.79, 187,205.19 and 45,965.78

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Solution

The fourth proportional to 124,861.79, 187,205.19 and 45,965.78 is: 68,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.79 : 187,205.19 = 45,965.78 : x
  2. Step 2: Convert to fraction form
    124,861.79/187,205.19 = 45,965.78/x
  3. Step 3: Cross multiply
    124,861.79x = 187,205.19 × 45,965.78
  4. Step 4: Simplify right side
    124,861.79x = 8,605,032,578.40
  5. Step 5: Solve for x
    x = 8,605,032,578.40/124,861.79
  6. Step 6: Final answer
    x = 68,916.46

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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.