Home / 103,427.38-155,062.15-53,475.59

Finding the Fourth Proportional to 103,427.38, 155,062.15 and 53,475.59

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Solution

The fourth proportional to 103,427.38, 155,062.15 and 53,475.59 is: 80,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,427.38 : 155,062.15 = 53,475.59 : x
  2. Step 2: Convert to fraction form
    103,427.38/155,062.15 = 53,475.59/x
  3. Step 3: Cross multiply
    103,427.38x = 155,062.15 × 53,475.59
  4. Step 4: Simplify right side
    103,427.38x = 8,292,040,211.88
  5. Step 5: Solve for x
    x = 8,292,040,211.88/103,427.38
  6. Step 6: Final answer
    x = 80,172.58

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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.