Home / 142,577.61-196,735.08-82,136.43

Finding the Fourth Proportional to 142,577.61, 196,735.08 and 82,136.43

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Solution

The fourth proportional to 142,577.61, 196,735.08 and 82,136.43 is: 113,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,577.61 : 196,735.08 = 82,136.43 : x
  2. Step 2: Convert to fraction form
    142,577.61/196,735.08 = 82,136.43/x
  3. Step 3: Cross multiply
    142,577.61x = 196,735.08 × 82,136.43
  4. Step 4: Simplify right side
    142,577.61x = 16,159,117,126.96
  5. Step 5: Solve for x
    x = 16,159,117,126.96/142,577.61
  6. Step 6: Final answer
    x = 113,335.59

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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.