Home / 199,986.84-299,996.19-66,867.93

Finding the Fourth Proportional to 199,986.84, 299,996.19 and 66,867.93

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Solution

The fourth proportional to 199,986.84, 299,996.19 and 66,867.93 is: 100,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,986.84 : 299,996.19 = 66,867.93 : x
  2. Step 2: Convert to fraction form
    199,986.84/299,996.19 = 66,867.93/x
  3. Step 3: Cross multiply
    199,986.84x = 299,996.19 × 66,867.93
  4. Step 4: Simplify right side
    199,986.84x = 20,060,124,233.19
  5. Step 5: Solve for x
    x = 20,060,124,233.19/199,986.84
  6. Step 6: Final answer
    x = 100,307.22

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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.