Home / 104,102.31-143,661.02-56,355.65

Finding the Fourth Proportional to 104,102.31, 143,661.02 and 56,355.65

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Solution

The fourth proportional to 104,102.31, 143,661.02 and 56,355.65 is: 77,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,102.31 : 143,661.02 = 56,355.65 : x
  2. Step 2: Convert to fraction form
    104,102.31/143,661.02 = 56,355.65/x
  3. Step 3: Cross multiply
    104,102.31x = 143,661.02 × 56,355.65
  4. Step 4: Simplify right side
    104,102.31x = 8,096,109,161.68
  5. Step 5: Solve for x
    x = 8,096,109,161.68/104,102.31
  6. Step 6: Final answer
    x = 77,770.70

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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.