Home / 123,774.28-185,665.02-30,280

Finding the Fourth Proportional to 123,774.28, 185,665.02 and 30,280

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Solution

The fourth proportional to 123,774.28, 185,665.02 and 30,280 is: 45,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,774.28 : 185,665.02 = 30,280 : x
  2. Step 2: Convert to fraction form
    123,774.28/185,665.02 = 30,280/x
  3. Step 3: Cross multiply
    123,774.28x = 185,665.02 × 30,280
  4. Step 4: Simplify right side
    123,774.28x = 5,621,936,805.60
  5. Step 5: Solve for x
    x = 5,621,936,805.60/123,774.28
  6. Step 6: Final answer
    x = 45,420.88

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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.