Home / 211,870.20-317,643.30-106,764.60

Finding the Fourth Proportional to 211,870.20, 317,643.30 and 106,764.60

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Solution

The fourth proportional to 211,870.20, 317,643.30 and 106,764.60 is: 160,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,870.20 : 317,643.30 = 106,764.60 : x
  2. Step 2: Convert to fraction form
    211,870.20/317,643.30 = 106,764.60/x
  3. Step 3: Cross multiply
    211,870.20x = 317,643.30 × 106,764.60
  4. Step 4: Simplify right side
    211,870.20x = 33,913,059,867.18
  5. Step 5: Solve for x
    x = 33,913,059,867.18/211,870.20
  6. Step 6: Final answer
    x = 160,065.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.