Home / 136,979.22-188,908.95-85,996.71

Finding the Fourth Proportional to 136,979.22, 188,908.95 and 85,996.71

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Solution

The fourth proportional to 136,979.22, 188,908.95 and 85,996.71 is: 118,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,979.22 : 188,908.95 = 85,996.71 : x
  2. Step 2: Convert to fraction form
    136,979.22/188,908.95 = 85,996.71/x
  3. Step 3: Cross multiply
    136,979.22x = 188,908.95 × 85,996.71
  4. Step 4: Simplify right side
    136,979.22x = 16,245,548,189.55
  5. Step 5: Solve for x
    x = 16,245,548,189.55/136,979.22
  6. Step 6: Final answer
    x = 118,598.63

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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.