Home / 213,223.59-294,125.20-137,772.09

Finding the Fourth Proportional to 213,223.59, 294,125.20 and 137,772.09

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Solution

The fourth proportional to 213,223.59, 294,125.20 and 137,772.09 is: 190,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,223.59 : 294,125.20 = 137,772.09 : x
  2. Step 2: Convert to fraction form
    213,223.59/294,125.20 = 137,772.09/x
  3. Step 3: Cross multiply
    213,223.59x = 294,125.20 × 137,772.09
  4. Step 4: Simplify right side
    213,223.59x = 40,522,242,790.36
  5. Step 5: Solve for x
    x = 40,522,242,790.36/213,223.59
  6. Step 6: Final answer
    x = 190,045.78

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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.