Home / 99,722.10-149,458.41-49,816.19

Finding the Fourth Proportional to 99,722.10, 149,458.41 and 49,816.19

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Solution

The fourth proportional to 99,722.10, 149,458.41 and 49,816.19 is: 74,661.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,722.10 : 149,458.41 = 49,816.19 : x
  2. Step 2: Convert to fraction form
    99,722.10/149,458.41 = 49,816.19/x
  3. Step 3: Cross multiply
    99,722.10x = 149,458.41 × 49,816.19
  4. Step 4: Simplify right side
    99,722.10x = 7,445,447,802.37
  5. Step 5: Solve for x
    x = 7,445,447,802.37/99,722.10
  6. Step 6: Final answer
    x = 74,661.96

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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.