Home / 99,405.36-149,110.56-29,287.08

Finding the Fourth Proportional to 99,405.36, 149,110.56 and 29,287.08

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Solution

The fourth proportional to 99,405.36, 149,110.56 and 29,287.08 is: 43,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,405.36 : 149,110.56 = 29,287.08 : x
  2. Step 2: Convert to fraction form
    99,405.36/149,110.56 = 29,287.08/x
  3. Step 3: Cross multiply
    99,405.36x = 149,110.56 × 29,287.08
  4. Step 4: Simplify right side
    99,405.36x = 4,367,012,899.56
  5. Step 5: Solve for x
    x = 4,367,012,899.56/99,405.36
  6. Step 6: Final answer
    x = 43,931.36

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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.