Home / 102,116.53-140,910.01-56,787.22

Finding the Fourth Proportional to 102,116.53, 140,910.01 and 56,787.22

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Solution

The fourth proportional to 102,116.53, 140,910.01 and 56,787.22 is: 78,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,116.53 : 140,910.01 = 56,787.22 : x
  2. Step 2: Convert to fraction form
    102,116.53/140,910.01 = 56,787.22/x
  3. Step 3: Cross multiply
    102,116.53x = 140,910.01 × 56,787.22
  4. Step 4: Simplify right side
    102,116.53x = 8,001,887,738.07
  5. Step 5: Solve for x
    x = 8,001,887,738.07/102,116.53
  6. Step 6: Final answer
    x = 78,360.36

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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.