Home / 99,241.36-148,529.40-81,471.04

Finding the Fourth Proportional to 99,241.36, 148,529.40 and 81,471.04

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Solution

The fourth proportional to 99,241.36, 148,529.40 and 81,471.04 is: 121,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,241.36 : 148,529.40 = 81,471.04 : x
  2. Step 2: Convert to fraction form
    99,241.36/148,529.40 = 81,471.04/x
  3. Step 3: Cross multiply
    99,241.36x = 148,529.40 × 81,471.04
  4. Step 4: Simplify right side
    99,241.36x = 12,100,844,688.58
  5. Step 5: Solve for x
    x = 12,100,844,688.58/99,241.36
  6. Step 6: Final answer
    x = 121,933.48

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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.