Home / 99,455.40-149,131.80-29,325.60

Finding the Fourth Proportional to 99,455.40, 149,131.80 and 29,325.60

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Solution

The fourth proportional to 99,455.40, 149,131.80 and 29,325.60 is: 43,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455.40 : 149,131.80 = 29,325.60 : x
  2. Step 2: Convert to fraction form
    99,455.40/149,131.80 = 29,325.60/x
  3. Step 3: Cross multiply
    99,455.40x = 149,131.80 × 29,325.60
  4. Step 4: Simplify right side
    99,455.40x = 4,373,379,514.08
  5. Step 5: Solve for x
    x = 4,373,379,514.08/99,455.40
  6. Step 6: Final answer
    x = 43,973.27

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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.