Home / 84,180.64-126,150.64-61,818.56

Finding the Fourth Proportional to 84,180.64, 126,150.64 and 61,818.56

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Solution

The fourth proportional to 84,180.64, 126,150.64 and 61,818.56 is: 92,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,180.64 : 126,150.64 = 61,818.56 : x
  2. Step 2: Convert to fraction form
    84,180.64/126,150.64 = 61,818.56/x
  3. Step 3: Cross multiply
    84,180.64x = 126,150.64 × 61,818.56
  4. Step 4: Simplify right side
    84,180.64x = 7,798,450,907.88
  5. Step 5: Solve for x
    x = 7,798,450,907.88/84,180.64
  6. Step 6: Final answer
    x = 92,639.48

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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.