Home / 104,078.12-143,631.29-63,784.10

Finding the Fourth Proportional to 104,078.12, 143,631.29 and 63,784.10

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Solution

The fourth proportional to 104,078.12, 143,631.29 and 63,784.10 is: 88,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.12 : 143,631.29 = 63,784.10 : x
  2. Step 2: Convert to fraction form
    104,078.12/143,631.29 = 63,784.10/x
  3. Step 3: Cross multiply
    104,078.12x = 143,631.29 × 63,784.10
  4. Step 4: Simplify right side
    104,078.12x = 9,161,393,083.03
  5. Step 5: Solve for x
    x = 9,161,393,083.03/104,078.12
  6. Step 6: Final answer
    x = 88,024.20

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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.