Home / 154,259.44-212,902.63-90,584.93

Finding the Fourth Proportional to 154,259.44, 212,902.63 and 90,584.93

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Solution

The fourth proportional to 154,259.44, 212,902.63 and 90,584.93 is: 125,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,259.44 : 212,902.63 = 90,584.93 : x
  2. Step 2: Convert to fraction form
    154,259.44/212,902.63 = 90,584.93/x
  3. Step 3: Cross multiply
    154,259.44x = 212,902.63 × 90,584.93
  4. Step 4: Simplify right side
    154,259.44x = 19,285,770,141.16
  5. Step 5: Solve for x
    x = 19,285,770,141.16/154,259.44
  6. Step 6: Final answer
    x = 125,021.65

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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.