Home / 100,928.16-151,392.24-30,803.76

Finding the Fourth Proportional to 100,928.16, 151,392.24 and 30,803.76

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Solution

The fourth proportional to 100,928.16, 151,392.24 and 30,803.76 is: 46,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,928.16 : 151,392.24 = 30,803.76 : x
  2. Step 2: Convert to fraction form
    100,928.16/151,392.24 = 30,803.76/x
  3. Step 3: Cross multiply
    100,928.16x = 151,392.24 × 30,803.76
  4. Step 4: Simplify right side
    100,928.16x = 4,663,450,226.82
  5. Step 5: Solve for x
    x = 4,663,450,226.82/100,928.16
  6. Step 6: Final answer
    x = 46,205.64

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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.