Home / 103,425.88-155,089.60-47,249.36

Finding the Fourth Proportional to 103,425.88, 155,089.60 and 47,249.36

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Solution

The fourth proportional to 103,425.88, 155,089.60 and 47,249.36 is: 70,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,425.88 : 155,089.60 = 47,249.36 : x
  2. Step 2: Convert to fraction form
    103,425.88/155,089.60 = 47,249.36/x
  3. Step 3: Cross multiply
    103,425.88x = 155,089.60 × 47,249.36
  4. Step 4: Simplify right side
    103,425.88x = 7,327,884,342.66
  5. Step 5: Solve for x
    x = 7,327,884,342.66/103,425.88
  6. Step 6: Final answer
    x = 70,851.55

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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.