Home / 140,983.20-211,647.60-139,946.40

Finding the Fourth Proportional to 140,983.20, 211,647.60 and 139,946.40

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Solution

The fourth proportional to 140,983.20, 211,647.60 and 139,946.40 is: 210,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,983.20 : 211,647.60 = 139,946.40 : x
  2. Step 2: Convert to fraction form
    140,983.20/211,647.60 = 139,946.40/x
  3. Step 3: Cross multiply
    140,983.20x = 211,647.60 × 139,946.40
  4. Step 4: Simplify right side
    140,983.20x = 29,619,319,688.64
  5. Step 5: Solve for x
    x = 29,619,319,688.64/140,983.20
  6. Step 6: Final answer
    x = 210,091.13

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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.