Home / 117,743.16-162,532.62-72,439.68

Finding the Fourth Proportional to 117,743.16, 162,532.62 and 72,439.68

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Solution

The fourth proportional to 117,743.16, 162,532.62 and 72,439.68 is: 99,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,743.16 : 162,532.62 = 72,439.68 : x
  2. Step 2: Convert to fraction form
    117,743.16/162,532.62 = 72,439.68/x
  3. Step 3: Cross multiply
    117,743.16x = 162,532.62 × 72,439.68
  4. Step 4: Simplify right side
    117,743.16x = 11,773,810,982.36
  5. Step 5: Solve for x
    x = 11,773,810,982.36/117,743.16
  6. Step 6: Final answer
    x = 99,995.71

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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.