Home / 112,517.88-155,133.54-72,160.44

Finding the Fourth Proportional to 112,517.88, 155,133.54 and 72,160.44

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Solution

The fourth proportional to 112,517.88, 155,133.54 and 72,160.44 is: 99,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,517.88 : 155,133.54 = 72,160.44 : x
  2. Step 2: Convert to fraction form
    112,517.88/155,133.54 = 72,160.44/x
  3. Step 3: Cross multiply
    112,517.88x = 155,133.54 × 72,160.44
  4. Step 4: Simplify right side
    112,517.88x = 11,194,504,505.16
  5. Step 5: Solve for x
    x = 11,194,504,505.16/112,517.88
  6. Step 6: Final answer
    x = 99,490.89

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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.