Home / 108,540.30-162,810.45-73,110.90

Finding the Fourth Proportional to 108,540.30, 162,810.45 and 73,110.90

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Solution

The fourth proportional to 108,540.30, 162,810.45 and 73,110.90 is: 109,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,540.30 : 162,810.45 = 73,110.90 : x
  2. Step 2: Convert to fraction form
    108,540.30/162,810.45 = 73,110.90/x
  3. Step 3: Cross multiply
    108,540.30x = 162,810.45 × 73,110.90
  4. Step 4: Simplify right side
    108,540.30x = 11,903,218,528.91
  5. Step 5: Solve for x
    x = 11,903,218,528.91/108,540.30
  6. Step 6: Final answer
    x = 109,666.35

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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.