Home / 165,406.32-228,164.31-120,031.50

Finding the Fourth Proportional to 165,406.32, 228,164.31 and 120,031.50

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Solution

The fourth proportional to 165,406.32, 228,164.31 and 120,031.50 is: 165,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,406.32 : 228,164.31 = 120,031.50 : x
  2. Step 2: Convert to fraction form
    165,406.32/228,164.31 = 120,031.50/x
  3. Step 3: Cross multiply
    165,406.32x = 228,164.31 × 120,031.50
  4. Step 4: Simplify right side
    165,406.32x = 27,386,904,375.77
  5. Step 5: Solve for x
    x = 27,386,904,375.77/165,406.32
  6. Step 6: Final answer
    x = 165,573.51

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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.