Home / 199,931.63-299,944.33-136,781.48

Finding the Fourth Proportional to 199,931.63, 299,944.33 and 136,781.48

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Solution

The fourth proportional to 199,931.63, 299,944.33 and 136,781.48 is: 205,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,931.63 : 299,944.33 = 136,781.48 : x
  2. Step 2: Convert to fraction form
    199,931.63/299,944.33 = 136,781.48/x
  3. Step 3: Cross multiply
    199,931.63x = 299,944.33 × 136,781.48
  4. Step 4: Simplify right side
    199,931.63x = 41,026,829,375.01
  5. Step 5: Solve for x
    x = 41,026,829,375.01/199,931.63
  6. Step 6: Final answer
    x = 205,204.30

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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.