Home / 100,378.08-150,548.88-30,238.56

Finding the Fourth Proportional to 100,378.08, 150,548.88 and 30,238.56

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Solution

The fourth proportional to 100,378.08, 150,548.88 and 30,238.56 is: 45,352.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,378.08 : 150,548.88 = 30,238.56 : x
  2. Step 2: Convert to fraction form
    100,378.08/150,548.88 = 30,238.56/x
  3. Step 3: Cross multiply
    100,378.08x = 150,548.88 × 30,238.56
  4. Step 4: Simplify right side
    100,378.08x = 4,552,381,340.81
  5. Step 5: Solve for x
    x = 4,552,381,340.81/100,378.08
  6. Step 6: Final answer
    x = 45,352.35

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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.