Home / 123,480-185,219.84-29,985.60

Finding the Fourth Proportional to 123,480, 185,219.84 and 29,985.60

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Solution

The fourth proportional to 123,480, 185,219.84 and 29,985.60 is: 44,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,480 : 185,219.84 = 29,985.60 : x
  2. Step 2: Convert to fraction form
    123,480/185,219.84 = 29,985.60/x
  3. Step 3: Cross multiply
    123,480x = 185,219.84 × 29,985.60
  4. Step 4: Simplify right side
    123,480x = 5,553,928,034.30
  5. Step 5: Solve for x
    x = 5,553,928,034.30/123,480
  6. Step 6: Final answer
    x = 44,978.36

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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.