Home / 88,867.93-121,984.94-78,570.80

Finding the Fourth Proportional to 88,867.93, 121,984.94 and 78,570.80

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Solution

The fourth proportional to 88,867.93, 121,984.94 and 78,570.80 is: 107,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,867.93 : 121,984.94 = 78,570.80 : x
  2. Step 2: Convert to fraction form
    88,867.93/121,984.94 = 78,570.80/x
  3. Step 3: Cross multiply
    88,867.93x = 121,984.94 × 78,570.80
  4. Step 4: Simplify right side
    88,867.93x = 9,584,454,323.75
  5. Step 5: Solve for x
    x = 9,584,454,323.75/88,867.93
  6. Step 6: Final answer
    x = 107,850.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.