Home / 165,525.29-228,394.40-100,979.63

Finding the Fourth Proportional to 165,525.29, 228,394.40 and 100,979.63

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Solution

The fourth proportional to 165,525.29, 228,394.40 and 100,979.63 is: 139,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,525.29 : 228,394.40 = 100,979.63 : x
  2. Step 2: Convert to fraction form
    165,525.29/228,394.40 = 100,979.63/x
  3. Step 3: Cross multiply
    165,525.29x = 228,394.40 × 100,979.63
  4. Step 4: Simplify right side
    165,525.29x = 23,063,182,072.16
  5. Step 5: Solve for x
    x = 23,063,182,072.16/165,525.29
  6. Step 6: Final answer
    x = 139,333.28

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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.