Home / 109,285.62-163,928.70-30,399.86

Finding the Fourth Proportional to 109,285.62, 163,928.70 and 30,399.86

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Solution

The fourth proportional to 109,285.62, 163,928.70 and 30,399.86 is: 45,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,285.62 : 163,928.70 = 30,399.86 : x
  2. Step 2: Convert to fraction form
    109,285.62/163,928.70 = 30,399.86/x
  3. Step 3: Cross multiply
    109,285.62x = 163,928.70 × 30,399.86
  4. Step 4: Simplify right side
    109,285.62x = 4,983,408,710.34
  5. Step 5: Solve for x
    x = 4,983,408,710.34/109,285.62
  6. Step 6: Final answer
    x = 45,599.86

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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.