Home / 104,023.12-143,485.68-68,215.36

Finding the Fourth Proportional to 104,023.12, 143,485.68 and 68,215.36

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Solution

The fourth proportional to 104,023.12, 143,485.68 and 68,215.36 is: 94,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,023.12 : 143,485.68 = 68,215.36 : x
  2. Step 2: Convert to fraction form
    104,023.12/143,485.68 = 68,215.36/x
  3. Step 3: Cross multiply
    104,023.12x = 143,485.68 × 68,215.36
  4. Step 4: Simplify right side
    104,023.12x = 9,787,927,316.04
  5. Step 5: Solve for x
    x = 9,787,927,316.04/104,023.12
  6. Step 6: Final answer
    x = 94,093.77

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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.