Home / 140,874.36-211,244.65-81,728.16

Finding the Fourth Proportional to 140,874.36, 211,244.65 and 81,728.16

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Solution

The fourth proportional to 140,874.36, 211,244.65 and 81,728.16 is: 122,553.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,874.36 : 211,244.65 = 81,728.16 : x
  2. Step 2: Convert to fraction form
    140,874.36/211,244.65 = 81,728.16/x
  3. Step 3: Cross multiply
    140,874.36x = 211,244.65 × 81,728.16
  4. Step 4: Simplify right side
    140,874.36x = 17,264,636,350.02
  5. Step 5: Solve for x
    x = 17,264,636,350.02/140,874.36
  6. Step 6: Final answer
    x = 122,553.43

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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.