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Finding the Fourth Proportional to 117,237.74, 161,788.02 and 63,522.78

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Solution

The fourth proportional to 117,237.74, 161,788.02 and 63,522.78 is: 87,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,237.74 : 161,788.02 = 63,522.78 : x
  2. Step 2: Convert to fraction form
    117,237.74/161,788.02 = 63,522.78/x
  3. Step 3: Cross multiply
    117,237.74x = 161,788.02 × 63,522.78
  4. Step 4: Simplify right side
    117,237.74x = 10,277,224,801.10
  5. Step 5: Solve for x
    x = 10,277,224,801.10/117,237.74
  6. Step 6: Final answer
    x = 87,661.41

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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.