Home / 165,421.20-248,196.60-65,564.40

Finding the Fourth Proportional to 165,421.20, 248,196.60 and 65,564.40

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Solution

The fourth proportional to 165,421.20, 248,196.60 and 65,564.40 is: 98,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,421.20 : 248,196.60 = 65,564.40 : x
  2. Step 2: Convert to fraction form
    165,421.20/248,196.60 = 65,564.40/x
  3. Step 3: Cross multiply
    165,421.20x = 248,196.60 × 65,564.40
  4. Step 4: Simplify right side
    165,421.20x = 16,272,861,161.04
  5. Step 5: Solve for x
    x = 16,272,861,161.04/165,421.20
  6. Step 6: Final answer
    x = 98,372.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.