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Finding the Fourth Proportional to 117,330.66, 161,915.56 and 63,615.51

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Solution

The fourth proportional to 117,330.66, 161,915.56 and 63,615.51 is: 87,789.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.66 : 161,915.56 = 63,615.51 : x
  2. Step 2: Convert to fraction form
    117,330.66/161,915.56 = 63,615.51/x
  3. Step 3: Cross multiply
    117,330.66x = 161,915.56 × 63,615.51
  4. Step 4: Simplify right side
    117,330.66x = 10,300,340,767.30
  5. Step 5: Solve for x
    x = 10,300,340,767.30/117,330.66
  6. Step 6: Final answer
    x = 87,789.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.