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Finding the Fourth Proportional to 87,460.65, 131,190.98 and 69,964.65

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Solution

The fourth proportional to 87,460.65, 131,190.98 and 69,964.65 is: 104,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,460.65 : 131,190.98 = 69,964.65 : x
  2. Step 2: Convert to fraction form
    87,460.65/131,190.98 = 69,964.65/x
  3. Step 3: Cross multiply
    87,460.65x = 131,190.98 × 69,964.65
  4. Step 4: Simplify right side
    87,460.65x = 9,178,730,649.03
  5. Step 5: Solve for x
    x = 9,178,730,649.03/87,460.65
  6. Step 6: Final answer
    x = 104,946.98

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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.