Home / 165,721.59-228,689.34-101,298.69

Finding the Fourth Proportional to 165,721.59, 228,689.34 and 101,298.69

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Solution

The fourth proportional to 165,721.59, 228,689.34 and 101,298.69 is: 139,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,721.59 : 228,689.34 = 101,298.69 : x
  2. Step 2: Convert to fraction form
    165,721.59/228,689.34 = 101,298.69/x
  3. Step 3: Cross multiply
    165,721.59x = 228,689.34 × 101,298.69
  4. Step 4: Simplify right side
    165,721.59x = 23,165,930,558.96
  5. Step 5: Solve for x
    x = 23,165,930,558.96/165,721.59
  6. Step 6: Final answer
    x = 139,788.25

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1.5x scale

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.