Home / 147,418.36-203,379.60-90,731.32

Finding the Fourth Proportional to 147,418.36, 203,379.60 and 90,731.32

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Solution

The fourth proportional to 147,418.36, 203,379.60 and 90,731.32 is: 125,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,418.36 : 203,379.60 = 90,731.32 : x
  2. Step 2: Convert to fraction form
    147,418.36/203,379.60 = 90,731.32/x
  3. Step 3: Cross multiply
    147,418.36x = 203,379.60 × 90,731.32
  4. Step 4: Simplify right side
    147,418.36x = 18,452,899,569.07
  5. Step 5: Solve for x
    x = 18,452,899,569.07/147,418.36
  6. Step 6: Final answer
    x = 125,173.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.