Home / 165,711.12-248,575.80-53,383.20

Finding the Fourth Proportional to 165,711.12, 248,575.80 and 53,383.20

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Solution

The fourth proportional to 165,711.12, 248,575.80 and 53,383.20 is: 80,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,711.12 : 248,575.80 = 53,383.20 : x
  2. Step 2: Convert to fraction form
    165,711.12/248,575.80 = 53,383.20/x
  3. Step 3: Cross multiply
    165,711.12x = 248,575.80 × 53,383.20
  4. Step 4: Simplify right side
    165,711.12x = 13,269,771,646.56
  5. Step 5: Solve for x
    x = 13,269,771,646.56/165,711.12
  6. Step 6: Final answer
    x = 80,077.74

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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.