Home / 100,694.20-151,031.56-30,574.12

Finding the Fourth Proportional to 100,694.20, 151,031.56 and 30,574.12

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Solution

The fourth proportional to 100,694.20, 151,031.56 and 30,574.12 is: 45,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,694.20 : 151,031.56 = 30,574.12 : x
  2. Step 2: Convert to fraction form
    100,694.20/151,031.56 = 30,574.12/x
  3. Step 3: Cross multiply
    100,694.20x = 151,031.56 × 30,574.12
  4. Step 4: Simplify right side
    100,694.20x = 4,617,657,039.23
  5. Step 5: Solve for x
    x = 4,617,657,039.23/100,694.20
  6. Step 6: Final answer
    x = 45,858.22

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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.