Home / 100,016.32-150,012.88-40,070.64

Finding the Fourth Proportional to 100,016.32, 150,012.88 and 40,070.64

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Solution

The fourth proportional to 100,016.32, 150,012.88 and 40,070.64 is: 60,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,016.32 : 150,012.88 = 40,070.64 : x
  2. Step 2: Convert to fraction form
    100,016.32/150,012.88 = 40,070.64/x
  3. Step 3: Cross multiply
    100,016.32x = 150,012.88 × 40,070.64
  4. Step 4: Simplify right side
    100,016.32x = 6,011,112,109.84
  5. Step 5: Solve for x
    x = 6,011,112,109.84/100,016.32
  6. Step 6: Final answer
    x = 60,101.31

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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.