Home / 140,721.02-211,103.13-47,204.90

Finding the Fourth Proportional to 140,721.02, 211,103.13 and 47,204.90

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Solution

The fourth proportional to 140,721.02, 211,103.13 and 47,204.90 is: 70,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,721.02 : 211,103.13 = 47,204.90 : x
  2. Step 2: Convert to fraction form
    140,721.02/211,103.13 = 47,204.90/x
  3. Step 3: Cross multiply
    140,721.02x = 211,103.13 × 47,204.90
  4. Step 4: Simplify right side
    140,721.02x = 9,965,102,141.34
  5. Step 5: Solve for x
    x = 9,965,102,141.34/140,721.02
  6. Step 6: Final answer
    x = 70,814.60

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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.