Home / 99,419.14-149,133.32-28,346.60

Finding the Fourth Proportional to 99,419.14, 149,133.32 and 28,346.60

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Solution

The fourth proportional to 99,419.14, 149,133.32 and 28,346.60 is: 42,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,419.14 : 149,133.32 = 28,346.60 : x
  2. Step 2: Convert to fraction form
    99,419.14/149,133.32 = 28,346.60/x
  3. Step 3: Cross multiply
    99,419.14x = 149,133.32 × 28,346.60
  4. Step 4: Simplify right side
    99,419.14x = 4,227,422,568.71
  5. Step 5: Solve for x
    x = 4,227,422,568.71/99,419.14
  6. Step 6: Final answer
    x = 42,521.21

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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.