Home / 108,104.13-161,938.80-53,905.23

Finding the Fourth Proportional to 108,104.13, 161,938.80 and 53,905.23

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Solution

The fourth proportional to 108,104.13, 161,938.80 and 53,905.23 is: 80,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,104.13 : 161,938.80 = 53,905.23 : x
  2. Step 2: Convert to fraction form
    108,104.13/161,938.80 = 53,905.23/x
  3. Step 3: Cross multiply
    108,104.13x = 161,938.80 × 53,905.23
  4. Step 4: Simplify right side
    108,104.13x = 8,729,348,259.92
  5. Step 5: Solve for x
    x = 8,729,348,259.92/108,104.13
  6. Step 6: Final answer
    x = 80,749.44

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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.