Home / 99,419.04-149,135.84-28,340.32

Finding the Fourth Proportional to 99,419.04, 149,135.84 and 28,340.32

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Solution

The fourth proportional to 99,419.04, 149,135.84 and 28,340.32 is: 42,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,419.04 : 149,135.84 = 28,340.32 : x
  2. Step 2: Convert to fraction form
    99,419.04/149,135.84 = 28,340.32/x
  3. Step 3: Cross multiply
    99,419.04x = 149,135.84 × 28,340.32
  4. Step 4: Simplify right side
    99,419.04x = 4,226,557,429.07
  5. Step 5: Solve for x
    x = 4,226,557,429.07/99,419.04
  6. Step 6: Final answer
    x = 42,512.56

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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.