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Finding the Fourth Proportional to 103,163.98, 142,292.55 and 94,693

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Solution

The fourth proportional to 103,163.98, 142,292.55 and 94,693 is: 130,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,163.98 : 142,292.55 = 94,693 : x
  2. Step 2: Convert to fraction form
    103,163.98/142,292.55 = 94,693/x
  3. Step 3: Cross multiply
    103,163.98x = 142,292.55 × 94,693
  4. Step 4: Simplify right side
    103,163.98x = 13,474,108,437.15
  5. Step 5: Solve for x
    x = 13,474,108,437.15/103,163.98
  6. Step 6: Final answer
    x = 130,608.65

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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.