Home / 136,056.42-187,841.88-87,675.39

Finding the Fourth Proportional to 136,056.42, 187,841.88 and 87,675.39

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Solution

The fourth proportional to 136,056.42, 187,841.88 and 87,675.39 is: 121,046.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,056.42 : 187,841.88 = 87,675.39 : x
  2. Step 2: Convert to fraction form
    136,056.42/187,841.88 = 87,675.39/x
  3. Step 3: Cross multiply
    136,056.42x = 187,841.88 × 87,675.39
  4. Step 4: Simplify right side
    136,056.42x = 16,469,110,087.33
  5. Step 5: Solve for x
    x = 16,469,110,087.33/136,056.42
  6. Step 6: Final answer
    x = 121,046.18

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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.