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Finding the Fourth Proportional to 154,456.93, 212,982.24 and 134,134.30

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Solution

The fourth proportional to 154,456.93, 212,982.24 and 134,134.30 is: 184,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,456.93 : 212,982.24 = 134,134.30 : x
  2. Step 2: Convert to fraction form
    154,456.93/212,982.24 = 134,134.30/x
  3. Step 3: Cross multiply
    154,456.93x = 212,982.24 × 134,134.30
  4. Step 4: Simplify right side
    154,456.93x = 28,568,223,674.83
  5. Step 5: Solve for x
    x = 28,568,223,674.83/154,456.93
  6. Step 6: Final answer
    x = 184,959.16

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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.