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Finding the Fourth Proportional to 201,963, 303,030.42 and 83,720.28

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Solution

The fourth proportional to 201,963, 303,030.42 and 83,720.28 is: 125,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,963 : 303,030.42 = 83,720.28 : x
  2. Step 2: Convert to fraction form
    201,963/303,030.42 = 83,720.28/x
  3. Step 3: Cross multiply
    201,963x = 303,030.42 × 83,720.28
  4. Step 4: Simplify right side
    201,963x = 25,369,791,610.92
  5. Step 5: Solve for x
    x = 25,369,791,610.92/201,963
  6. Step 6: Final answer
    x = 125,616.04

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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.