Home / 211,940.79-292,276.98-139,214.85

Finding the Fourth Proportional to 211,940.79, 292,276.98 and 139,214.85

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Solution

The fourth proportional to 211,940.79, 292,276.98 and 139,214.85 is: 191,984.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,940.79 : 292,276.98 = 139,214.85 : x
  2. Step 2: Convert to fraction form
    211,940.79/292,276.98 = 139,214.85/x
  3. Step 3: Cross multiply
    211,940.79x = 292,276.98 × 139,214.85
  4. Step 4: Simplify right side
    211,940.79x = 40,689,295,929.15
  5. Step 5: Solve for x
    x = 40,689,295,929.15/211,940.79
  6. Step 6: Final answer
    x = 191,984.26

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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.