Home / 100,947.70-151,421.55-30,826.90

Finding the Fourth Proportional to 100,947.70, 151,421.55 and 30,826.90

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Solution

The fourth proportional to 100,947.70, 151,421.55 and 30,826.90 is: 46,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,947.70 : 151,421.55 = 30,826.90 : x
  2. Step 2: Convert to fraction form
    100,947.70/151,421.55 = 30,826.90/x
  3. Step 3: Cross multiply
    100,947.70x = 151,421.55 × 30,826.90
  4. Step 4: Simplify right side
    100,947.70x = 4,667,856,979.70
  5. Step 5: Solve for x
    x = 4,667,856,979.70/100,947.70
  6. Step 6: Final answer
    x = 46,240.35

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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.