Home / 117,721.68-162,451.47-64,004.84

Finding the Fourth Proportional to 117,721.68, 162,451.47 and 64,004.84

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Solution

The fourth proportional to 117,721.68, 162,451.47 and 64,004.84 is: 88,324.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,721.68 : 162,451.47 = 64,004.84 : x
  2. Step 2: Convert to fraction form
    117,721.68/162,451.47 = 64,004.84/x
  3. Step 3: Cross multiply
    117,721.68x = 162,451.47 × 64,004.84
  4. Step 4: Simplify right side
    117,721.68x = 10,397,680,345.11
  5. Step 5: Solve for x
    x = 10,397,680,345.11/117,721.68
  6. Step 6: Final answer
    x = 88,324.26

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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.