Home / 140,981.46-211,405.23-81,835.26

Finding the Fourth Proportional to 140,981.46, 211,405.23 and 81,835.26

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Solution

The fourth proportional to 140,981.46, 211,405.23 and 81,835.26 is: 122,714.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,981.46 : 211,405.23 = 81,835.26 : x
  2. Step 2: Convert to fraction form
    140,981.46/211,405.23 = 81,835.26/x
  3. Step 3: Cross multiply
    140,981.46x = 211,405.23 × 81,835.26
  4. Step 4: Simplify right side
    140,981.46x = 17,300,401,962.41
  5. Step 5: Solve for x
    x = 17,300,401,962.41/140,981.46
  6. Step 6: Final answer
    x = 122,714.02

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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.