Home / 165,871.04-228,902.04-90,419.60

Finding the Fourth Proportional to 165,871.04, 228,902.04 and 90,419.60

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Solution

The fourth proportional to 165,871.04, 228,902.04 and 90,419.60 is: 124,779.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,871.04 : 228,902.04 = 90,419.60 : x
  2. Step 2: Convert to fraction form
    165,871.04/228,902.04 = 90,419.60/x
  3. Step 3: Cross multiply
    165,871.04x = 228,902.04 × 90,419.60
  4. Step 4: Simplify right side
    165,871.04x = 20,697,230,895.98
  5. Step 5: Solve for x
    x = 20,697,230,895.98/165,871.04
  6. Step 6: Final answer
    x = 124,779.05

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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.