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Finding the Fourth Proportional to 108,590.80, 162,842.46 and 45,369.50

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Solution

The fourth proportional to 108,590.80, 162,842.46 and 45,369.50 is: 68,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,590.80 : 162,842.46 = 45,369.50 : x
  2. Step 2: Convert to fraction form
    108,590.80/162,842.46 = 45,369.50/x
  3. Step 3: Cross multiply
    108,590.80x = 162,842.46 × 45,369.50
  4. Step 4: Simplify right side
    108,590.80x = 7,388,080,988.97
  5. Step 5: Solve for x
    x = 7,388,080,988.97/108,590.80
  6. Step 6: Final answer
    x = 68,035.98

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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.