Home / 112,216.97-154,719.34-71,864.39

Finding the Fourth Proportional to 112,216.97, 154,719.34 and 71,864.39

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Solution

The fourth proportional to 112,216.97, 154,719.34 and 71,864.39 is: 99,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,216.97 : 154,719.34 = 71,864.39 : x
  2. Step 2: Convert to fraction form
    112,216.97/154,719.34 = 71,864.39/x
  3. Step 3: Cross multiply
    112,216.97x = 154,719.34 × 71,864.39
  4. Step 4: Simplify right side
    112,216.97x = 11,118,810,990.30
  5. Step 5: Solve for x
    x = 11,118,810,990.30/112,216.97
  6. Step 6: Final answer
    x = 99,083.15

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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.