Home / 88,451.22-121,979.34-68,276.28

Finding the Fourth Proportional to 88,451.22, 121,979.34 and 68,276.28

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Solution

The fourth proportional to 88,451.22, 121,979.34 and 68,276.28 is: 94,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,451.22 : 121,979.34 = 68,276.28 : x
  2. Step 2: Convert to fraction form
    88,451.22/121,979.34 = 68,276.28/x
  3. Step 3: Cross multiply
    88,451.22x = 121,979.34 × 68,276.28
  4. Step 4: Simplify right side
    88,451.22x = 8,328,295,572.06
  5. Step 5: Solve for x
    x = 8,328,295,572.06/88,451.22
  6. Step 6: Final answer
    x = 94,156.93

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1.5x scale

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.