Home / 109,357.20-164,015.55-30,455.10

Finding the Fourth Proportional to 109,357.20, 164,015.55 and 30,455.10

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Solution

The fourth proportional to 109,357.20, 164,015.55 and 30,455.10 is: 45,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,357.20 : 164,015.55 = 30,455.10 : x
  2. Step 2: Convert to fraction form
    109,357.20/164,015.55 = 30,455.10/x
  3. Step 3: Cross multiply
    109,357.20x = 164,015.55 × 30,455.10
  4. Step 4: Simplify right side
    109,357.20x = 4,995,109,976.81
  5. Step 5: Solve for x
    x = 4,995,109,976.81/109,357.20
  6. Step 6: Final answer
    x = 45,677.01

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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.