Home / 118,915.14-164,104.74-71,170.50

Finding the Fourth Proportional to 118,915.14, 164,104.74 and 71,170.50

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Solution

The fourth proportional to 118,915.14, 164,104.74 and 71,170.50 is: 98,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,915.14 : 164,104.74 = 71,170.50 : x
  2. Step 2: Convert to fraction form
    118,915.14/164,104.74 = 71,170.50/x
  3. Step 3: Cross multiply
    118,915.14x = 164,104.74 × 71,170.50
  4. Step 4: Simplify right side
    118,915.14x = 11,679,416,398.17
  5. Step 5: Solve for x
    x = 11,679,416,398.17/118,915.14
  6. Step 6: Final answer
    x = 98,216.40

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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.