Home / 108,035.20-161,955.60-70,613.20

Finding the Fourth Proportional to 108,035.20, 161,955.60 and 70,613.20

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Solution

The fourth proportional to 108,035.20, 161,955.60 and 70,613.20 is: 105,856.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,035.20 : 161,955.60 = 70,613.20 : x
  2. Step 2: Convert to fraction form
    108,035.20/161,955.60 = 70,613.20/x
  3. Step 3: Cross multiply
    108,035.20x = 161,955.60 × 70,613.20
  4. Step 4: Simplify right side
    108,035.20x = 11,436,203,173.92
  5. Step 5: Solve for x
    x = 11,436,203,173.92/108,035.20
  6. Step 6: Final answer
    x = 105,856.27

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1.5x scale

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.