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Finding the Fourth Proportional to 104,347.98, 143,952.39 and 61,891.02

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Solution

The fourth proportional to 104,347.98, 143,952.39 and 61,891.02 is: 85,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,347.98 : 143,952.39 = 61,891.02 : x
  2. Step 2: Convert to fraction form
    104,347.98/143,952.39 = 61,891.02/x
  3. Step 3: Cross multiply
    104,347.98x = 143,952.39 × 61,891.02
  4. Step 4: Simplify right side
    104,347.98x = 8,909,360,248.54
  5. Step 5: Solve for x
    x = 8,909,360,248.54/104,347.98
  6. Step 6: Final answer
    x = 85,381.24

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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.