Home / 118,713.91-178,166.88-91,996.55

Finding the Fourth Proportional to 118,713.91, 178,166.88 and 91,996.55

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Solution

The fourth proportional to 118,713.91, 178,166.88 and 91,996.55 is: 138,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,713.91 : 178,166.88 = 91,996.55 : x
  2. Step 2: Convert to fraction form
    118,713.91/178,166.88 = 91,996.55/x
  3. Step 3: Cross multiply
    118,713.91x = 178,166.88 × 91,996.55
  4. Step 4: Simplify right side
    118,713.91x = 16,390,737,393.43
  5. Step 5: Solve for x
    x = 16,390,737,393.43/118,713.91
  6. Step 6: Final answer
    x = 138,069.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.