Home / 132,567.48-182,911.22-78,121.87

Finding the Fourth Proportional to 132,567.48, 182,911.22 and 78,121.87

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Solution

The fourth proportional to 132,567.48, 182,911.22 and 78,121.87 is: 107,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,567.48 : 182,911.22 = 78,121.87 : x
  2. Step 2: Convert to fraction form
    132,567.48/182,911.22 = 78,121.87/x
  3. Step 3: Cross multiply
    132,567.48x = 182,911.22 × 78,121.87
  4. Step 4: Simplify right side
    132,567.48x = 14,289,366,106.63
  5. Step 5: Solve for x
    x = 14,289,366,106.63/132,567.48
  6. Step 6: Final answer
    x = 107,789.38

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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.