Home / 211,022.80-316,534.20-70,747.60

Finding the Fourth Proportional to 211,022.80, 316,534.20 and 70,747.60

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Solution

The fourth proportional to 211,022.80, 316,534.20 and 70,747.60 is: 106,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,022.80 : 316,534.20 = 70,747.60 : x
  2. Step 2: Convert to fraction form
    211,022.80/316,534.20 = 70,747.60/x
  3. Step 3: Cross multiply
    211,022.80x = 316,534.20 × 70,747.60
  4. Step 4: Simplify right side
    211,022.80x = 22,394,034,967.92
  5. Step 5: Solve for x
    x = 22,394,034,967.92/211,022.80
  6. Step 6: Final answer
    x = 106,121.40

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1.5x scale

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.