Home / 123,533.10-185,299.11-30,039.12

Finding the Fourth Proportional to 123,533.10, 185,299.11 and 30,039.12

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Solution

The fourth proportional to 123,533.10, 185,299.11 and 30,039.12 is: 45,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,533.10 : 185,299.11 = 30,039.12 : x
  2. Step 2: Convert to fraction form
    123,533.10/185,299.11 = 30,039.12/x
  3. Step 3: Cross multiply
    123,533.10x = 185,299.11 × 30,039.12
  4. Step 4: Simplify right side
    123,533.10x = 5,566,222,201.18
  5. Step 5: Solve for x
    x = 5,566,222,201.18/123,533.10
  6. Step 6: Final answer
    x = 45,058.55

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1.5x scale

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.