Home / 100,685.88-151,043.39-30,565.26

Finding the Fourth Proportional to 100,685.88, 151,043.39 and 30,565.26

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Solution

The fourth proportional to 100,685.88, 151,043.39 and 30,565.26 is: 45,852.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,685.88 : 151,043.39 = 30,565.26 : x
  2. Step 2: Convert to fraction form
    100,685.88/151,043.39 = 30,565.26/x
  3. Step 3: Cross multiply
    100,685.88x = 151,043.39 × 30,565.26
  4. Step 4: Simplify right side
    100,685.88x = 4,616,680,486.63
  5. Step 5: Solve for x
    x = 4,616,680,486.63/100,685.88
  6. Step 6: Final answer
    x = 45,852.31

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1.5x scale

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.