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Finding the Fourth Proportional to 168,906.30, 253,359.45 and 69,000.90

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Solution

The fourth proportional to 168,906.30, 253,359.45 and 69,000.90 is: 103,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,906.30 : 253,359.45 = 69,000.90 : x
  2. Step 2: Convert to fraction form
    168,906.30/253,359.45 = 69,000.90/x
  3. Step 3: Cross multiply
    168,906.30x = 253,359.45 × 69,000.90
  4. Step 4: Simplify right side
    168,906.30x = 17,482,030,073.51
  5. Step 5: Solve for x
    x = 17,482,030,073.51/168,906.30
  6. Step 6: Final answer
    x = 103,501.35

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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.