Home / 212,731.20-293,580.56-122,086.40

Finding the Fourth Proportional to 212,731.20, 293,580.56 and 122,086.40

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Solution

The fourth proportional to 212,731.20, 293,580.56 and 122,086.40 is: 168,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,731.20 : 293,580.56 = 122,086.40 : x
  2. Step 2: Convert to fraction form
    212,731.20/293,580.56 = 122,086.40/x
  3. Step 3: Cross multiply
    212,731.20x = 293,580.56 × 122,086.40
  4. Step 4: Simplify right side
    212,731.20x = 35,842,193,680.38
  5. Step 5: Solve for x
    x = 35,842,193,680.38/212,731.20
  6. Step 6: Final answer
    x = 168,485.83

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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.