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Finding the Fourth Proportional to 189,488.88, 261,487.84 and 104,604.12

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Solution

The fourth proportional to 189,488.88, 261,487.84 and 104,604.12 is: 144,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,488.88 : 261,487.84 = 104,604.12 : x
  2. Step 2: Convert to fraction form
    189,488.88/261,487.84 = 104,604.12/x
  3. Step 3: Cross multiply
    189,488.88x = 261,487.84 × 104,604.12
  4. Step 4: Simplify right side
    189,488.88x = 27,352,705,393.90
  5. Step 5: Solve for x
    x = 27,352,705,393.90/189,488.88
  6. Step 6: Final answer
    x = 144,349.92

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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.