Home / 142,539.35-196,690.95-85,167.25

Finding the Fourth Proportional to 142,539.35, 196,690.95 and 85,167.25

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Solution

The fourth proportional to 142,539.35, 196,690.95 and 85,167.25 is: 117,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539.35 : 196,690.95 = 85,167.25 : x
  2. Step 2: Convert to fraction form
    142,539.35/196,690.95 = 85,167.25/x
  3. Step 3: Cross multiply
    142,539.35x = 196,690.95 × 85,167.25
  4. Step 4: Simplify right side
    142,539.35x = 16,751,625,902.10
  5. Step 5: Solve for x
    x = 16,751,625,902.10/142,539.35
  6. Step 6: Final answer
    x = 117,522.82

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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.