Home / 100,132.95-150,180.30-30,012.26

Finding the Fourth Proportional to 100,132.95, 150,180.30 and 30,012.26

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Solution

The fourth proportional to 100,132.95, 150,180.30 and 30,012.26 is: 45,012.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,132.95 : 150,180.30 = 30,012.26 : x
  2. Step 2: Convert to fraction form
    100,132.95/150,180.30 = 30,012.26/x
  3. Step 3: Cross multiply
    100,132.95x = 150,180.30 × 30,012.26
  4. Step 4: Simplify right side
    100,132.95x = 4,507,250,210.48
  5. Step 5: Solve for x
    x = 4,507,250,210.48/100,132.95
  6. Step 6: Final answer
    x = 45,012.66

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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.