Home / 112,201.98-154,816.17-71,382.31

Finding the Fourth Proportional to 112,201.98, 154,816.17 and 71,382.31

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Solution

The fourth proportional to 112,201.98, 154,816.17 and 71,382.31 is: 98,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,201.98 : 154,816.17 = 71,382.31 : x
  2. Step 2: Convert to fraction form
    112,201.98/154,816.17 = 71,382.31/x
  3. Step 3: Cross multiply
    112,201.98x = 154,816.17 × 71,382.31
  4. Step 4: Simplify right side
    112,201.98x = 11,051,135,839.95
  5. Step 5: Solve for x
    x = 11,051,135,839.95/112,201.98
  6. Step 6: Final answer
    x = 98,493.23

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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.