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Finding the Fourth Proportional to 89,159.70, 133,665.84 and 69,525.30

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Solution

The fourth proportional to 89,159.70, 133,665.84 and 69,525.30 is: 104,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,159.70 : 133,665.84 = 69,525.30 : x
  2. Step 2: Convert to fraction form
    89,159.70/133,665.84 = 69,525.30/x
  3. Step 3: Cross multiply
    89,159.70x = 133,665.84 × 69,525.30
  4. Step 4: Simplify right side
    89,159.70x = 9,293,157,625.75
  5. Step 5: Solve for x
    x = 9,293,157,625.75/89,159.70
  6. Step 6: Final answer
    x = 104,230.47

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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.