Home / 165,640.28-248,425.50-53,330.54

Finding the Fourth Proportional to 165,640.28, 248,425.50 and 53,330.54

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Solution

The fourth proportional to 165,640.28, 248,425.50 and 53,330.54 is: 79,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.28 : 248,425.50 = 53,330.54 : x
  2. Step 2: Convert to fraction form
    165,640.28/248,425.50 = 53,330.54/x
  3. Step 3: Cross multiply
    165,640.28x = 248,425.50 × 53,330.54
  4. Step 4: Simplify right side
    165,640.28x = 13,248,666,064.77
  5. Step 5: Solve for x
    x = 13,248,666,064.77/165,640.28
  6. Step 6: Final answer
    x = 79,984.57

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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.