Home / 104,235.12-143,496.54-99,474.48

Finding the Fourth Proportional to 104,235.12, 143,496.54 and 99,474.48

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Solution

The fourth proportional to 104,235.12, 143,496.54 and 99,474.48 is: 136,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,235.12 : 143,496.54 = 99,474.48 : x
  2. Step 2: Convert to fraction form
    104,235.12/143,496.54 = 99,474.48/x
  3. Step 3: Cross multiply
    104,235.12x = 143,496.54 × 99,474.48
  4. Step 4: Simplify right side
    104,235.12x = 14,274,243,698.30
  5. Step 5: Solve for x
    x = 14,274,243,698.30/104,235.12
  6. Step 6: Final answer
    x = 136,942.75

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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.