Home / 154,825.44-213,608.64-90,280.08

Finding the Fourth Proportional to 154,825.44, 213,608.64 and 90,280.08

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Solution

The fourth proportional to 154,825.44, 213,608.64 and 90,280.08 is: 124,557.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,825.44 : 213,608.64 = 90,280.08 : x
  2. Step 2: Convert to fraction form
    154,825.44/213,608.64 = 90,280.08/x
  3. Step 3: Cross multiply
    154,825.44x = 213,608.64 × 90,280.08
  4. Step 4: Simplify right side
    154,825.44x = 19,284,605,107.89
  5. Step 5: Solve for x
    x = 19,284,605,107.89/154,825.44
  6. Step 6: Final answer
    x = 124,557.08

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1.5x scale

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.