Home / 165,731.08-228,715.86-90,283.72

Finding the Fourth Proportional to 165,731.08, 228,715.86 and 90,283.72

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Solution

The fourth proportional to 165,731.08, 228,715.86 and 90,283.72 is: 124,595.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,731.08 : 228,715.86 = 90,283.72 : x
  2. Step 2: Convert to fraction form
    165,731.08/228,715.86 = 90,283.72/x
  3. Step 3: Cross multiply
    165,731.08x = 228,715.86 × 90,283.72
  4. Step 4: Simplify right side
    165,731.08x = 20,649,318,663.80
  5. Step 5: Solve for x
    x = 20,649,318,663.80/165,731.08
  6. Step 6: Final answer
    x = 124,595.33

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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.