Home / 213,131.76-294,124.26-117,638.53

Finding the Fourth Proportional to 213,131.76, 294,124.26 and 117,638.53

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Solution

The fourth proportional to 213,131.76, 294,124.26 and 117,638.53 is: 162,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,131.76 : 294,124.26 = 117,638.53 : x
  2. Step 2: Convert to fraction form
    213,131.76/294,124.26 = 117,638.53/x
  3. Step 3: Cross multiply
    213,131.76x = 294,124.26 × 117,638.53
  4. Step 4: Simplify right side
    213,131.76x = 34,600,345,289.57
  5. Step 5: Solve for x
    x = 34,600,345,289.57/213,131.76
  6. Step 6: Final answer
    x = 162,342.51

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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.