Home / 107,785.52-162,043.14-86,872.32

Finding the Fourth Proportional to 107,785.52, 162,043.14 and 86,872.32

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Solution

The fourth proportional to 107,785.52, 162,043.14 and 86,872.32 is: 130,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,785.52 : 162,043.14 = 86,872.32 : x
  2. Step 2: Convert to fraction form
    107,785.52/162,043.14 = 86,872.32/x
  3. Step 3: Cross multiply
    107,785.52x = 162,043.14 × 86,872.32
  4. Step 4: Simplify right side
    107,785.52x = 14,077,063,511.88
  5. Step 5: Solve for x
    x = 14,077,063,511.88/107,785.52
  6. Step 6: Final answer
    x = 130,602.55

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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.