Home / 212,949.83-293,870.13-122,311.64

Finding the Fourth Proportional to 212,949.83, 293,870.13 and 122,311.64

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Solution

The fourth proportional to 212,949.83, 293,870.13 and 122,311.64 is: 168,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,949.83 : 293,870.13 = 122,311.64 : x
  2. Step 2: Convert to fraction form
    212,949.83/293,870.13 = 122,311.64/x
  3. Step 3: Cross multiply
    212,949.83x = 293,870.13 × 122,311.64
  4. Step 4: Simplify right side
    212,949.83x = 35,943,736,077.96
  5. Step 5: Solve for x
    x = 35,943,736,077.96/212,949.83
  6. Step 6: Final answer
    x = 168,789.70

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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.