Home / 100,852.32-151,278.33-30,731.64

Finding the Fourth Proportional to 100,852.32, 151,278.33 and 30,731.64

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Solution

The fourth proportional to 100,852.32, 151,278.33 and 30,731.64 is: 46,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,852.32 : 151,278.33 = 30,731.64 : x
  2. Step 2: Convert to fraction form
    100,852.32/151,278.33 = 30,731.64/x
  3. Step 3: Cross multiply
    100,852.32x = 151,278.33 × 30,731.64
  4. Step 4: Simplify right side
    100,852.32x = 4,649,030,725.31
  5. Step 5: Solve for x
    x = 4,649,030,725.31/100,852.32
  6. Step 6: Final answer
    x = 46,097.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.