Home / 123,840.32-185,760.46-30,345.26

Finding the Fourth Proportional to 123,840.32, 185,760.46 and 30,345.26

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Solution

The fourth proportional to 123,840.32, 185,760.46 and 30,345.26 is: 45,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.32 : 185,760.46 = 30,345.26 : x
  2. Step 2: Convert to fraction form
    123,840.32/185,760.46 = 30,345.26/x
  3. Step 3: Cross multiply
    123,840.32x = 185,760.46 × 30,345.26
  4. Step 4: Simplify right side
    123,840.32x = 5,636,949,456.42
  5. Step 5: Solve for x
    x = 5,636,949,456.42/123,840.32
  6. Step 6: Final answer
    x = 45,517.89

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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.