Home / 211,359.40-317,082.30-71,132.20

Finding the Fourth Proportional to 211,359.40, 317,082.30 and 71,132.20

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Solution

The fourth proportional to 211,359.40, 317,082.30 and 71,132.20 is: 106,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,359.40 : 317,082.30 = 71,132.20 : x
  2. Step 2: Convert to fraction form
    211,359.40/317,082.30 = 71,132.20/x
  3. Step 3: Cross multiply
    211,359.40x = 317,082.30 × 71,132.20
  4. Step 4: Simplify right side
    211,359.40x = 22,554,761,580.06
  5. Step 5: Solve for x
    x = 22,554,761,580.06/211,359.40
  6. Step 6: Final answer
    x = 106,712.84

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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.