Home / 103,889.66-143,334.02-63,561.38

Finding the Fourth Proportional to 103,889.66, 143,334.02 and 63,561.38

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Solution

The fourth proportional to 103,889.66, 143,334.02 and 63,561.38 is: 87,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,889.66 : 143,334.02 = 63,561.38 : x
  2. Step 2: Convert to fraction form
    103,889.66/143,334.02 = 63,561.38/x
  3. Step 3: Cross multiply
    103,889.66x = 143,334.02 × 63,561.38
  4. Step 4: Simplify right side
    103,889.66x = 9,110,508,112.15
  5. Step 5: Solve for x
    x = 9,110,508,112.15/103,889.66
  6. Step 6: Final answer
    x = 87,694.08

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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.