Home / 117,781.53-162,541.19-64,069.42

Finding the Fourth Proportional to 117,781.53, 162,541.19 and 64,069.42

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Solution

The fourth proportional to 117,781.53, 162,541.19 and 64,069.42 is: 88,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,781.53 : 162,541.19 = 64,069.42 : x
  2. Step 2: Convert to fraction form
    117,781.53/162,541.19 = 64,069.42/x
  3. Step 3: Cross multiply
    117,781.53x = 162,541.19 × 64,069.42
  4. Step 4: Simplify right side
    117,781.53x = 10,413,919,769.41
  5. Step 5: Solve for x
    x = 10,413,919,769.41/117,781.53
  6. Step 6: Final answer
    x = 88,417.26

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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.