Home / 211,635.36-292,069.92-139,890.96

Finding the Fourth Proportional to 211,635.36, 292,069.92 and 139,890.96

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Solution

The fourth proportional to 211,635.36, 292,069.92 and 139,890.96 is: 193,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,635.36 : 292,069.92 = 139,890.96 : x
  2. Step 2: Convert to fraction form
    211,635.36/292,069.92 = 139,890.96/x
  3. Step 3: Cross multiply
    211,635.36x = 292,069.92 × 139,890.96
  4. Step 4: Simplify right side
    211,635.36x = 40,857,941,495.92
  5. Step 5: Solve for x
    x = 40,857,941,495.92/211,635.36
  6. Step 6: Final answer
    x = 193,058.20

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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.