Home / 88,171.88-121,724.58-67,984.52

Finding the Fourth Proportional to 88,171.88, 121,724.58 and 67,984.52

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Solution

The fourth proportional to 88,171.88, 121,724.58 and 67,984.52 is: 93,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,171.88 : 121,724.58 = 67,984.52 : x
  2. Step 2: Convert to fraction form
    88,171.88/121,724.58 = 67,984.52/x
  3. Step 3: Cross multiply
    88,171.88x = 121,724.58 × 67,984.52
  4. Step 4: Simplify right side
    88,171.88x = 8,275,387,143.50
  5. Step 5: Solve for x
    x = 8,275,387,143.50/88,171.88
  6. Step 6: Final answer
    x = 93,855.17

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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.