Home / 154,746.72-213,643.62-101,121.48

Finding the Fourth Proportional to 154,746.72, 213,643.62 and 101,121.48

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Solution

The fourth proportional to 154,746.72, 213,643.62 and 101,121.48 is: 139,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,746.72 : 213,643.62 = 101,121.48 : x
  2. Step 2: Convert to fraction form
    154,746.72/213,643.62 = 101,121.48/x
  3. Step 3: Cross multiply
    154,746.72x = 213,643.62 × 101,121.48
  4. Step 4: Simplify right side
    154,746.72x = 21,603,959,046.96
  5. Step 5: Solve for x
    x = 21,603,959,046.96/154,746.72
  6. Step 6: Final answer
    x = 139,608.51

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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.