Home / 110,621.20-165,931.80-100,998.40

Finding the Fourth Proportional to 110,621.20, 165,931.80 and 100,998.40

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Solution

The fourth proportional to 110,621.20, 165,931.80 and 100,998.40 is: 151,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,621.20 : 165,931.80 = 100,998.40 : x
  2. Step 2: Convert to fraction form
    110,621.20/165,931.80 = 100,998.40/x
  3. Step 3: Cross multiply
    110,621.20x = 165,931.80 × 100,998.40
  4. Step 4: Simplify right side
    110,621.20x = 16,758,846,309.12
  5. Step 5: Solve for x
    x = 16,758,846,309.12/110,621.20
  6. Step 6: Final answer
    x = 151,497.60

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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.