Home / 108,710.40-162,992.70-49,515.60

Finding the Fourth Proportional to 108,710.40, 162,992.70 and 49,515.60

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Solution

The fourth proportional to 108,710.40, 162,992.70 and 49,515.60 is: 74,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,710.40 : 162,992.70 = 49,515.60 : x
  2. Step 2: Convert to fraction form
    108,710.40/162,992.70 = 49,515.60/x
  3. Step 3: Cross multiply
    108,710.40x = 162,992.70 × 49,515.60
  4. Step 4: Simplify right side
    108,710.40x = 8,070,681,336.12
  5. Step 5: Solve for x
    x = 8,070,681,336.12/108,710.40
  6. Step 6: Final answer
    x = 74,240.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.