Home / 103,939.91-143,436.45-56,193.14

Finding the Fourth Proportional to 103,939.91, 143,436.45 and 56,193.14

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Solution

The fourth proportional to 103,939.91, 143,436.45 and 56,193.14 is: 77,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,939.91 : 143,436.45 = 56,193.14 : x
  2. Step 2: Convert to fraction form
    103,939.91/143,436.45 = 56,193.14/x
  3. Step 3: Cross multiply
    103,939.91x = 143,436.45 × 56,193.14
  4. Step 4: Simplify right side
    103,939.91x = 8,060,144,611.14
  5. Step 5: Solve for x
    x = 8,060,144,611.14/103,939.91
  6. Step 6: Final answer
    x = 77,546.20

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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.