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Finding the Fourth Proportional to 108,630.30, 162,945.45 and 73,379.10

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Solution

The fourth proportional to 108,630.30, 162,945.45 and 73,379.10 is: 110,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,630.30 : 162,945.45 = 73,379.10 : x
  2. Step 2: Convert to fraction form
    108,630.30/162,945.45 = 73,379.10/x
  3. Step 3: Cross multiply
    108,630.30x = 162,945.45 × 73,379.10
  4. Step 4: Simplify right side
    108,630.30x = 11,956,790,470.10
  5. Step 5: Solve for x
    x = 11,956,790,470.10/108,630.30
  6. Step 6: Final answer
    x = 110,068.65

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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.