Home / 134,392.78-185,451.76-77,031.42

Finding the Fourth Proportional to 134,392.78, 185,451.76 and 77,031.42

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Solution

The fourth proportional to 134,392.78, 185,451.76 and 77,031.42 is: 106,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,392.78 : 185,451.76 = 77,031.42 : x
  2. Step 2: Convert to fraction form
    134,392.78/185,451.76 = 77,031.42/x
  3. Step 3: Cross multiply
    134,392.78x = 185,451.76 × 77,031.42
  4. Step 4: Simplify right side
    134,392.78x = 14,285,612,414.30
  5. Step 5: Solve for x
    x = 14,285,612,414.30/134,392.78
  6. Step 6: Final answer
    x = 106,297.47

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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.