Home / 200,070.11-299,771.98-140,781.22

Finding the Fourth Proportional to 200,070.11, 299,771.98 and 140,781.22

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Solution

The fourth proportional to 200,070.11, 299,771.98 and 140,781.22 is: 210,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,070.11 : 299,771.98 = 140,781.22 : x
  2. Step 2: Convert to fraction form
    200,070.11/299,771.98 = 140,781.22/x
  3. Step 3: Cross multiply
    200,070.11x = 299,771.98 × 140,781.22
  4. Step 4: Simplify right side
    200,070.11x = 42,202,265,066.22
  5. Step 5: Solve for x
    x = 42,202,265,066.22/200,070.11
  6. Step 6: Final answer
    x = 210,937.38

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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.