Home / 117,137.60-161,647.92-63,422.18

Finding the Fourth Proportional to 117,137.60, 161,647.92 and 63,422.18

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Solution

The fourth proportional to 117,137.60, 161,647.92 and 63,422.18 is: 87,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,137.60 : 161,647.92 = 63,422.18 : x
  2. Step 2: Convert to fraction form
    117,137.60/161,647.92 = 63,422.18/x
  3. Step 3: Cross multiply
    117,137.60x = 161,647.92 × 63,422.18
  4. Step 4: Simplify right side
    117,137.60x = 10,252,063,478.87
  5. Step 5: Solve for x
    x = 10,252,063,478.87/117,137.60
  6. Step 6: Final answer
    x = 87,521.54

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1.5x scale

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.