Home / 200,098.02-300,162.83-66,978.77

Finding the Fourth Proportional to 200,098.02, 300,162.83 and 66,978.77

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Solution

The fourth proportional to 200,098.02, 300,162.83 and 66,978.77 is: 100,473.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,098.02 : 300,162.83 = 66,978.77 : x
  2. Step 2: Convert to fraction form
    200,098.02/300,162.83 = 66,978.77/x
  3. Step 3: Cross multiply
    200,098.02x = 300,162.83 × 66,978.77
  4. Step 4: Simplify right side
    200,098.02x = 20,104,535,317.41
  5. Step 5: Solve for x
    x = 20,104,535,317.41/200,098.02
  6. Step 6: Final answer
    x = 100,473.43

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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.