Home / 104,078.69-143,632.06-63,784.66

Finding the Fourth Proportional to 104,078.69, 143,632.06 and 63,784.66

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Solution

The fourth proportional to 104,078.69, 143,632.06 and 63,784.66 is: 88,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.69 : 143,632.06 = 63,784.66 : x
  2. Step 2: Convert to fraction form
    104,078.69/143,632.06 = 63,784.66/x
  3. Step 3: Cross multiply
    104,078.69x = 143,632.06 × 63,784.66
  4. Step 4: Simplify right side
    104,078.69x = 9,161,522,371.47
  5. Step 5: Solve for x
    x = 9,161,522,371.47/104,078.69
  6. Step 6: Final answer
    x = 88,024.96

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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.