Home / 212,815.20-293,698.20-117,321.72

Finding the Fourth Proportional to 212,815.20, 293,698.20 and 117,321.72

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Solution

The fourth proportional to 212,815.20, 293,698.20 and 117,321.72 is: 161,911.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,815.20 : 293,698.20 = 117,321.72 : x
  2. Step 2: Convert to fraction form
    212,815.20/293,698.20 = 117,321.72/x
  3. Step 3: Cross multiply
    212,815.20x = 293,698.20 × 117,321.72
  4. Step 4: Simplify right side
    212,815.20x = 34,457,177,984.90
  5. Step 5: Solve for x
    x = 34,457,177,984.90/212,815.20
  6. Step 6: Final answer
    x = 161,911.26

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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.