Home / 112,418.82-154,957.74-76,108.80

Finding the Fourth Proportional to 112,418.82, 154,957.74 and 76,108.80

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Solution

The fourth proportional to 112,418.82, 154,957.74 and 76,108.80 is: 104,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,418.82 : 154,957.74 = 76,108.80 : x
  2. Step 2: Convert to fraction form
    112,418.82/154,957.74 = 76,108.80/x
  3. Step 3: Cross multiply
    112,418.82x = 154,957.74 × 76,108.80
  4. Step 4: Simplify right side
    112,418.82x = 11,793,647,642.11
  5. Step 5: Solve for x
    x = 11,793,647,642.11/112,418.82
  6. Step 6: Final answer
    x = 104,908.13

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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.