Home / 109,109.96-163,646.34-30,205.70

Finding the Fourth Proportional to 109,109.96, 163,646.34 and 30,205.70

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Solution

The fourth proportional to 109,109.96, 163,646.34 and 30,205.70 is: 45,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,109.96 : 163,646.34 = 30,205.70 : x
  2. Step 2: Convert to fraction form
    109,109.96/163,646.34 = 30,205.70/x
  3. Step 3: Cross multiply
    109,109.96x = 163,646.34 × 30,205.70
  4. Step 4: Simplify right side
    109,109.96x = 4,943,052,252.14
  5. Step 5: Solve for x
    x = 4,943,052,252.14/109,109.96
  6. Step 6: Final answer
    x = 45,303.40

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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.