Home / 213,142.20-294,115.20-117,642.68

Finding the Fourth Proportional to 213,142.20, 294,115.20 and 117,642.68

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Solution

The fourth proportional to 213,142.20, 294,115.20 and 117,642.68 is: 162,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,142.20 : 294,115.20 = 117,642.68 : x
  2. Step 2: Convert to fraction form
    213,142.20/294,115.20 = 117,642.68/x
  3. Step 3: Cross multiply
    213,142.20x = 294,115.20 × 117,642.68
  4. Step 4: Simplify right side
    213,142.20x = 34,600,500,356.74
  5. Step 5: Solve for x
    x = 34,600,500,356.74/213,142.20
  6. Step 6: Final answer
    x = 162,335.29

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1.5x scale

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.