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Finding the Fourth Proportional to 154,698.42, 213,444 and 91,024.32

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Solution

The fourth proportional to 154,698.42, 213,444 and 91,024.32 is: 125,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,698.42 : 213,444 = 91,024.32 : x
  2. Step 2: Convert to fraction form
    154,698.42/213,444 = 91,024.32/x
  3. Step 3: Cross multiply
    154,698.42x = 213,444 × 91,024.32
  4. Step 4: Simplify right side
    154,698.42x = 19,428,594,958.08
  5. Step 5: Solve for x
    x = 19,428,594,958.08/154,698.42
  6. Step 6: Final answer
    x = 125,590.13

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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.