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Finding the Fourth Proportional to 161,866.88, 223,296.90 and 108,165.10

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Solution

The fourth proportional to 161,866.88, 223,296.90 and 108,165.10 is: 149,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,866.88 : 223,296.90 = 108,165.10 : x
  2. Step 2: Convert to fraction form
    161,866.88/223,296.90 = 108,165.10/x
  3. Step 3: Cross multiply
    161,866.88x = 223,296.90 × 108,165.10
  4. Step 4: Simplify right side
    161,866.88x = 24,152,931,518.19
  5. Step 5: Solve for x
    x = 24,152,931,518.19/161,866.88
  6. Step 6: Final answer
    x = 149,214.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.