Home / 140,154.48-210,120.12-80,922.96

Finding the Fourth Proportional to 140,154.48, 210,120.12 and 80,922.96

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Solution

The fourth proportional to 140,154.48, 210,120.12 and 80,922.96 is: 121,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,154.48 : 210,120.12 = 80,922.96 : x
  2. Step 2: Convert to fraction form
    140,154.48/210,120.12 = 80,922.96/x
  3. Step 3: Cross multiply
    140,154.48x = 210,120.12 × 80,922.96
  4. Step 4: Simplify right side
    140,154.48x = 17,003,542,065.96
  5. Step 5: Solve for x
    x = 17,003,542,065.96/140,154.48
  6. Step 6: Final answer
    x = 121,320.00

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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.