Home / 120,518.12-180,586.92-97,918.58

Finding the Fourth Proportional to 120,518.12, 180,586.92 and 97,918.58

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Solution

The fourth proportional to 120,518.12, 180,586.92 and 97,918.58 is: 146,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,518.12 : 180,586.92 = 97,918.58 : x
  2. Step 2: Convert to fraction form
    120,518.12/180,586.92 = 97,918.58/x
  3. Step 3: Cross multiply
    120,518.12x = 180,586.92 × 97,918.58
  4. Step 4: Simplify right side
    120,518.12x = 17,682,814,772.97
  5. Step 5: Solve for x
    x = 17,682,814,772.97/120,518.12
  6. Step 6: Final answer
    x = 146,723.29

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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.