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Finding the Fourth Proportional to 97,643.82, 146,462.49 and 66,068.40

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Solution

The fourth proportional to 97,643.82, 146,462.49 and 66,068.40 is: 99,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,643.82 : 146,462.49 = 66,068.40 : x
  2. Step 2: Convert to fraction form
    97,643.82/146,462.49 = 66,068.40/x
  3. Step 3: Cross multiply
    97,643.82x = 146,462.49 × 66,068.40
  4. Step 4: Simplify right side
    97,643.82x = 9,676,542,374.32
  5. Step 5: Solve for x
    x = 9,676,542,374.32/97,643.82
  6. Step 6: Final answer
    x = 99,100.41

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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.