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Finding the Fourth Proportional to 189,469.66, 261,468.36 and 104,586.72

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Solution

The fourth proportional to 189,469.66, 261,468.36 and 104,586.72 is: 144,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,469.66 : 261,468.36 = 104,586.72 : x
  2. Step 2: Convert to fraction form
    189,469.66/261,468.36 = 104,586.72/x
  3. Step 3: Cross multiply
    189,469.66x = 261,468.36 × 104,586.72
  4. Step 4: Simplify right side
    189,469.66x = 27,346,118,156.18
  5. Step 5: Solve for x
    x = 27,346,118,156.18/189,469.66
  6. Step 6: Final answer
    x = 144,329.80

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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.