Home / 100,130.49-150,210.31-30,015.27

Finding the Fourth Proportional to 100,130.49, 150,210.31 and 30,015.27

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Solution

The fourth proportional to 100,130.49, 150,210.31 and 30,015.27 is: 45,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,130.49 : 150,210.31 = 30,015.27 : x
  2. Step 2: Convert to fraction form
    100,130.49/150,210.31 = 30,015.27/x
  3. Step 3: Cross multiply
    100,130.49x = 150,210.31 × 30,015.27
  4. Step 4: Simplify right side
    100,130.49x = 4,508,603,011.43
  5. Step 5: Solve for x
    x = 4,508,603,011.43/100,130.49
  6. Step 6: Final answer
    x = 45,027.27

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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.