Home / 213,143.48-294,140.41-117,650.15

Finding the Fourth Proportional to 213,143.48, 294,140.41 and 117,650.15

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Solution

The fourth proportional to 213,143.48, 294,140.41 and 117,650.15 is: 162,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,143.48 : 294,140.41 = 117,650.15 : x
  2. Step 2: Convert to fraction form
    213,143.48/294,140.41 = 117,650.15/x
  3. Step 3: Cross multiply
    213,143.48x = 294,140.41 × 117,650.15
  4. Step 4: Simplify right side
    213,143.48x = 34,605,663,798.79
  5. Step 5: Solve for x
    x = 34,605,663,798.79/213,143.48
  6. Step 6: Final answer
    x = 162,358.54

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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.