Home / 131,265.45-196,929.36-42,518.88

Finding the Fourth Proportional to 131,265.45, 196,929.36 and 42,518.88

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Solution

The fourth proportional to 131,265.45, 196,929.36 and 42,518.88 is: 63,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,265.45 : 196,929.36 = 42,518.88 : x
  2. Step 2: Convert to fraction form
    131,265.45/196,929.36 = 42,518.88/x
  3. Step 3: Cross multiply
    131,265.45x = 196,929.36 × 42,518.88
  4. Step 4: Simplify right side
    131,265.45x = 8,373,215,826.32
  5. Step 5: Solve for x
    x = 8,373,215,826.32/131,265.45
  6. Step 6: Final answer
    x = 63,788.42

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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.