Home / 99,419.58-149,133.96-28,347.03

Finding the Fourth Proportional to 99,419.58, 149,133.96 and 28,347.03

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Solution

The fourth proportional to 99,419.58, 149,133.96 and 28,347.03 is: 42,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,419.58 : 149,133.96 = 28,347.03 : x
  2. Step 2: Convert to fraction form
    99,419.58/149,133.96 = 28,347.03/x
  3. Step 3: Cross multiply
    99,419.58x = 149,133.96 × 28,347.03
  4. Step 4: Simplify right side
    99,419.58x = 4,227,504,838.14
  5. Step 5: Solve for x
    x = 4,227,504,838.14/99,419.58
  6. Step 6: Final answer
    x = 42,521.85

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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.