Home / 107,098.20-147,768.30-66,808.80

Finding the Fourth Proportional to 107,098.20, 147,768.30 and 66,808.80

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Solution

The fourth proportional to 107,098.20, 147,768.30 and 66,808.80 is: 92,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,098.20 : 147,768.30 = 66,808.80 : x
  2. Step 2: Convert to fraction form
    107,098.20/147,768.30 = 66,808.80/x
  3. Step 3: Cross multiply
    107,098.20x = 147,768.30 × 66,808.80
  4. Step 4: Simplify right side
    107,098.20x = 9,872,222,801.04
  5. Step 5: Solve for x
    x = 9,872,222,801.04/107,098.20
  6. Step 6: Final answer
    x = 92,179.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.