Home / 117,939.62-162,746.43-66,954.51

Finding the Fourth Proportional to 117,939.62, 162,746.43 and 66,954.51

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Solution

The fourth proportional to 117,939.62, 162,746.43 and 66,954.51 is: 92,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,939.62 : 162,746.43 = 66,954.51 : x
  2. Step 2: Convert to fraction form
    117,939.62/162,746.43 = 66,954.51/x
  3. Step 3: Cross multiply
    117,939.62x = 162,746.43 × 66,954.51
  4. Step 4: Simplify right side
    117,939.62x = 10,896,607,223.82
  5. Step 5: Solve for x
    x = 10,896,607,223.82/117,939.62
  6. Step 6: Final answer
    x = 92,391.40

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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.