Home / 211,743.60-317,615.40-106,767.60

Finding the Fourth Proportional to 211,743.60, 317,615.40 and 106,767.60

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Solution

The fourth proportional to 211,743.60, 317,615.40 and 106,767.60 is: 160,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,743.60 : 317,615.40 = 106,767.60 : x
  2. Step 2: Convert to fraction form
    211,743.60/317,615.40 = 106,767.60/x
  3. Step 3: Cross multiply
    211,743.60x = 317,615.40 × 106,767.60
  4. Step 4: Simplify right side
    211,743.60x = 33,911,033,981.04
  5. Step 5: Solve for x
    x = 33,911,033,981.04/211,743.60
  6. Step 6: Final answer
    x = 160,151.40

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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.