Home / 105,543.18-145,649.66-57,796.54

Finding the Fourth Proportional to 105,543.18, 145,649.66 and 57,796.54

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Solution

The fourth proportional to 105,543.18, 145,649.66 and 57,796.54 is: 79,759.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,543.18 : 145,649.66 = 57,796.54 : x
  2. Step 2: Convert to fraction form
    105,543.18/145,649.66 = 57,796.54/x
  3. Step 3: Cross multiply
    105,543.18x = 145,649.66 × 57,796.54
  4. Step 4: Simplify right side
    105,543.18x = 8,418,045,382.95
  5. Step 5: Solve for x
    x = 8,418,045,382.95/105,543.18
  6. Step 6: Final answer
    x = 79,759.26

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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.