Home / 165,323.10-228,139.53-89,871.60

Finding the Fourth Proportional to 165,323.10, 228,139.53 and 89,871.60

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Solution

The fourth proportional to 165,323.10, 228,139.53 and 89,871.60 is: 124,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,323.10 : 228,139.53 = 89,871.60 : x
  2. Step 2: Convert to fraction form
    165,323.10/228,139.53 = 89,871.60/x
  3. Step 3: Cross multiply
    165,323.10x = 228,139.53 × 89,871.60
  4. Step 4: Simplify right side
    165,323.10x = 20,503,264,584.35
  5. Step 5: Solve for x
    x = 20,503,264,584.35/165,323.10
  6. Step 6: Final answer
    x = 124,019.36

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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.