Home / 199,971.81-275,968.47-109,333.81

Finding the Fourth Proportional to 199,971.81, 275,968.47 and 109,333.81

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Solution

The fourth proportional to 199,971.81, 275,968.47 and 109,333.81 is: 150,884.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,971.81 : 275,968.47 = 109,333.81 : x
  2. Step 2: Convert to fraction form
    199,971.81/275,968.47 = 109,333.81/x
  3. Step 3: Cross multiply
    199,971.81x = 275,968.47 × 109,333.81
  4. Step 4: Simplify right side
    199,971.81x = 30,172,683,718.30
  5. Step 5: Solve for x
    x = 30,172,683,718.30/199,971.81
  6. Step 6: Final answer
    x = 150,884.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.