Home / 213,138.42-294,110.04-117,638.92

Finding the Fourth Proportional to 213,138.42, 294,110.04 and 117,638.92

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Solution

The fourth proportional to 213,138.42, 294,110.04 and 117,638.92 is: 162,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,138.42 : 294,110.04 = 117,638.92 : x
  2. Step 2: Convert to fraction form
    213,138.42/294,110.04 = 117,638.92/x
  3. Step 3: Cross multiply
    213,138.42x = 294,110.04 × 117,638.92
  4. Step 4: Simplify right side
    213,138.42x = 34,598,787,466.76
  5. Step 5: Solve for x
    x = 34,598,787,466.76/213,138.42
  6. Step 6: Final answer
    x = 162,330.13

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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.