Home / 117,330.41-161,915.19-63,615.26

Finding the Fourth Proportional to 117,330.41, 161,915.19 and 63,615.26

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Solution

The fourth proportional to 117,330.41, 161,915.19 and 63,615.26 is: 87,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.41 : 161,915.19 = 63,615.26 : x
  2. Step 2: Convert to fraction form
    117,330.41/161,915.19 = 63,615.26/x
  3. Step 3: Cross multiply
    117,330.41x = 161,915.19 × 63,615.26
  4. Step 4: Simplify right side
    117,330.41x = 10,300,276,909.80
  5. Step 5: Solve for x
    x = 10,300,276,909.80/117,330.41
  6. Step 6: Final answer
    x = 87,788.64

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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.