Home / 136,316.82-188,274.66-90,915.91

Finding the Fourth Proportional to 136,316.82, 188,274.66 and 90,915.91

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Solution

The fourth proportional to 136,316.82, 188,274.66 and 90,915.91 is: 125,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,316.82 : 188,274.66 = 90,915.91 : x
  2. Step 2: Convert to fraction form
    136,316.82/188,274.66 = 90,915.91/x
  3. Step 3: Cross multiply
    136,316.82x = 188,274.66 × 90,915.91
  4. Step 4: Simplify right side
    136,316.82x = 17,117,162,043.84
  5. Step 5: Solve for x
    x = 17,117,162,043.84/136,316.82
  6. Step 6: Final answer
    x = 125,568.97

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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.