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Finding the Fourth Proportional to 101,605.36, 140,283.89 and 63,423.07

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Solution

The fourth proportional to 101,605.36, 140,283.89 and 63,423.07 is: 87,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,605.36 : 140,283.89 = 63,423.07 : x
  2. Step 2: Convert to fraction form
    101,605.36/140,283.89 = 63,423.07/x
  3. Step 3: Cross multiply
    101,605.36x = 140,283.89 × 63,423.07
  4. Step 4: Simplify right side
    101,605.36x = 8,897,234,975.34
  5. Step 5: Solve for x
    x = 8,897,234,975.34/101,605.36
  6. Step 6: Final answer
    x = 87,566.59

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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.