Home / 165,716.48-228,689.60-90,264.96

Finding the Fourth Proportional to 165,716.48, 228,689.60 and 90,264.96

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Solution

The fourth proportional to 165,716.48, 228,689.60 and 90,264.96 is: 124,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,716.48 : 228,689.60 = 90,264.96 : x
  2. Step 2: Convert to fraction form
    165,716.48/228,689.60 = 90,264.96/x
  3. Step 3: Cross multiply
    165,716.48x = 228,689.60 × 90,264.96
  4. Step 4: Simplify right side
    165,716.48x = 20,642,657,596.42
  5. Step 5: Solve for x
    x = 20,642,657,596.42/165,716.48
  6. Step 6: Final answer
    x = 124,566.11

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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.