Home / 140,943.20-211,587.60-139,906.40

Finding the Fourth Proportional to 140,943.20, 211,587.60 and 139,906.40

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Solution

The fourth proportional to 140,943.20, 211,587.60 and 139,906.40 is: 210,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,943.20 : 211,587.60 = 139,906.40 : x
  2. Step 2: Convert to fraction form
    140,943.20/211,587.60 = 139,906.40/x
  3. Step 3: Cross multiply
    140,943.20x = 211,587.60 × 139,906.40
  4. Step 4: Simplify right side
    140,943.20x = 29,602,459,400.64
  5. Step 5: Solve for x
    x = 29,602,459,400.64/140,943.20
  6. Step 6: Final answer
    x = 210,031.13

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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.