Home / 117,641.62-162,234.75-90,741.52

Finding the Fourth Proportional to 117,641.62, 162,234.75 and 90,741.52

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Solution

The fourth proportional to 117,641.62, 162,234.75 and 90,741.52 is: 125,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,641.62 : 162,234.75 = 90,741.52 : x
  2. Step 2: Convert to fraction form
    117,641.62/162,234.75 = 90,741.52/x
  3. Step 3: Cross multiply
    117,641.62x = 162,234.75 × 90,741.52
  4. Step 4: Simplify right side
    117,641.62x = 14,721,427,811.82
  5. Step 5: Solve for x
    x = 14,721,427,811.82/117,641.62
  6. Step 6: Final answer
    x = 125,137.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.