Home / 213,142.42-294,115.56-117,642.92

Finding the Fourth Proportional to 213,142.42, 294,115.56 and 117,642.92

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Solution

The fourth proportional to 213,142.42, 294,115.56 and 117,642.92 is: 162,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,142.42 : 294,115.56 = 117,642.92 : x
  2. Step 2: Convert to fraction form
    213,142.42/294,115.56 = 117,642.92/x
  3. Step 3: Cross multiply
    213,142.42x = 294,115.56 × 117,642.92
  4. Step 4: Simplify right side
    213,142.42x = 34,600,613,295.84
  5. Step 5: Solve for x
    x = 34,600,613,295.84/213,142.42
  6. Step 6: Final answer
    x = 162,335.65

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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.