Home / 104,287.38-143,840.12-68,464.32

Finding the Fourth Proportional to 104,287.38, 143,840.12 and 68,464.32

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Solution

The fourth proportional to 104,287.38, 143,840.12 and 68,464.32 is: 94,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,287.38 : 143,840.12 = 68,464.32 : x
  2. Step 2: Convert to fraction form
    104,287.38/143,840.12 = 68,464.32/x
  3. Step 3: Cross multiply
    104,287.38x = 143,840.12 × 68,464.32
  4. Step 4: Simplify right side
    104,287.38x = 9,847,915,662.20
  5. Step 5: Solve for x
    x = 9,847,915,662.20/104,287.38
  6. Step 6: Final answer
    x = 94,430.56

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1.5x scale

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.