Home / 117,240.69-161,795.16-71,943.71

Finding the Fourth Proportional to 117,240.69, 161,795.16 and 71,943.71

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Solution

The fourth proportional to 117,240.69, 161,795.16 and 71,943.71 is: 99,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,240.69 : 161,795.16 = 71,943.71 : x
  2. Step 2: Convert to fraction form
    117,240.69/161,795.16 = 71,943.71/x
  3. Step 3: Cross multiply
    117,240.69x = 161,795.16 × 71,943.71
  4. Step 4: Simplify right side
    117,240.69x = 11,640,143,261.47
  5. Step 5: Solve for x
    x = 11,640,143,261.47/117,240.69
  6. Step 6: Final answer
    x = 99,284.16

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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.