Home / 103,768,625.92-143,195,756-56,728,126.88

Finding the Fourth Proportional to 103,768,625.92, 143,195,756 and 56,728,126.88

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Solution

The fourth proportional to 103,768,625.92, 143,195,756 and 56,728,126.88 is: 78,282,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,768,625.92 : 143,195,756 = 56,728,126.88 : x
  2. Step 2: Convert to fraction form
    103,768,625.92/143,195,756 = 56,728,126.88/x
  3. Step 3: Cross multiply
    103,768,625.92x = 143,195,756 × 56,728,126.88
  4. Step 4: Simplify right side
    103,768,625.92x = 8,123,227,015,045,522
  5. Step 5: Solve for x
    x = 8,123,227,015,045,522/103,768,625.92
  6. Step 6: Final answer
    x = 78,282,110.25

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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.