Home / 113,484.72-170,067.75-89,687.64

Finding the Fourth Proportional to 113,484.72, 170,067.75 and 89,687.64

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Solution

The fourth proportional to 113,484.72, 170,067.75 and 89,687.64 is: 134,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,484.72 : 170,067.75 = 89,687.64 : x
  2. Step 2: Convert to fraction form
    113,484.72/170,067.75 = 89,687.64/x
  3. Step 3: Cross multiply
    113,484.72x = 170,067.75 × 89,687.64
  4. Step 4: Simplify right side
    113,484.72x = 15,252,975,137.61
  5. Step 5: Solve for x
    x = 15,252,975,137.61/113,484.72
  6. Step 6: Final answer
    x = 134,405.54

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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.