Home / 142,593.28-196,656.64-85,992.32

Finding the Fourth Proportional to 142,593.28, 196,656.64 and 85,992.32

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Solution

The fourth proportional to 142,593.28, 196,656.64 and 85,992.32 is: 118,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,593.28 : 196,656.64 = 85,992.32 : x
  2. Step 2: Convert to fraction form
    142,593.28/196,656.64 = 85,992.32/x
  3. Step 3: Cross multiply
    142,593.28x = 196,656.64 × 85,992.32
  4. Step 4: Simplify right side
    142,593.28x = 16,910,960,717.00
  5. Step 5: Solve for x
    x = 16,910,960,717.00/142,593.28
  6. Step 6: Final answer
    x = 118,595.78

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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.