Home / 117,904.50-162,711.62-64,190.43

Finding the Fourth Proportional to 117,904.50, 162,711.62 and 64,190.43

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Solution

The fourth proportional to 117,904.50, 162,711.62 and 64,190.43 is: 88,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,904.50 : 162,711.62 = 64,190.43 : x
  2. Step 2: Convert to fraction form
    117,904.50/162,711.62 = 64,190.43/x
  3. Step 3: Cross multiply
    117,904.50x = 162,711.62 × 64,190.43
  4. Step 4: Simplify right side
    117,904.50x = 10,444,528,853.80
  5. Step 5: Solve for x
    x = 10,444,528,853.80/117,904.50
  6. Step 6: Final answer
    x = 88,584.65

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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.