Home / 84,186.50-126,314.38-61,811.42

Finding the Fourth Proportional to 84,186.50, 126,314.38 and 61,811.42

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Solution

The fourth proportional to 84,186.50, 126,314.38 and 61,811.42 is: 92,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,186.50 : 126,314.38 = 61,811.42 : x
  2. Step 2: Convert to fraction form
    84,186.50/126,314.38 = 61,811.42/x
  3. Step 3: Cross multiply
    84,186.50x = 126,314.38 × 61,811.42
  4. Step 4: Simplify right side
    84,186.50x = 7,807,671,194.22
  5. Step 5: Solve for x
    x = 7,807,671,194.22/84,186.50
  6. Step 6: Final answer
    x = 92,742.56

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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.