Home / 91,206.20-136,809.30-82,458.20

Finding the Fourth Proportional to 91,206.20, 136,809.30 and 82,458.20

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Solution

The fourth proportional to 91,206.20, 136,809.30 and 82,458.20 is: 123,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,206.20 : 136,809.30 = 82,458.20 : x
  2. Step 2: Convert to fraction form
    91,206.20/136,809.30 = 82,458.20/x
  3. Step 3: Cross multiply
    91,206.20x = 136,809.30 × 82,458.20
  4. Step 4: Simplify right side
    91,206.20x = 11,281,048,621.26
  5. Step 5: Solve for x
    x = 11,281,048,621.26/91,206.20
  6. Step 6: Final answer
    x = 123,687.30

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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.