Home / 145,549.02-200,791.29-105,198.87

Finding the Fourth Proportional to 145,549.02, 200,791.29 and 105,198.87

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Solution

The fourth proportional to 145,549.02, 200,791.29 and 105,198.87 is: 145,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,549.02 : 200,791.29 = 105,198.87 : x
  2. Step 2: Convert to fraction form
    145,549.02/200,791.29 = 105,198.87/x
  3. Step 3: Cross multiply
    145,549.02x = 200,791.29 × 105,198.87
  4. Step 4: Simplify right side
    145,549.02x = 21,123,016,813.84
  5. Step 5: Solve for x
    x = 21,123,016,813.84/145,549.02
  6. Step 6: Final answer
    x = 145,126.48

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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.