Home / 192,741.76-289,040.88-66,346.72

Finding the Fourth Proportional to 192,741.76, 289,040.88 and 66,346.72

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Solution

The fourth proportional to 192,741.76, 289,040.88 and 66,346.72 is: 99,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,741.76 : 289,040.88 = 66,346.72 : x
  2. Step 2: Convert to fraction form
    192,741.76/289,040.88 = 66,346.72/x
  3. Step 3: Cross multiply
    192,741.76x = 289,040.88 × 66,346.72
  4. Step 4: Simplify right side
    192,741.76x = 19,176,914,333.91
  5. Step 5: Solve for x
    x = 19,176,914,333.91/192,741.76
  6. Step 6: Final answer
    x = 99,495.38

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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.