Home / 213,179.04-294,036.68-136,720.31

Finding the Fourth Proportional to 213,179.04, 294,036.68 and 136,720.31

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Solution

The fourth proportional to 213,179.04, 294,036.68 and 136,720.31 is: 188,577.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,179.04 : 294,036.68 = 136,720.31 : x
  2. Step 2: Convert to fraction form
    213,179.04/294,036.68 = 136,720.31/x
  3. Step 3: Cross multiply
    213,179.04x = 294,036.68 × 136,720.31
  4. Step 4: Simplify right side
    213,179.04x = 40,200,784,912.59
  5. Step 5: Solve for x
    x = 40,200,784,912.59/213,179.04
  6. Step 6: Final answer
    x = 188,577.57

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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.