Home / 230,885.64-346,380.39-81,136.28

Finding the Fourth Proportional to 230,885.64, 346,380.39 and 81,136.28

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Solution

The fourth proportional to 230,885.64, 346,380.39 and 81,136.28 is: 121,722.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,885.64 : 346,380.39 = 81,136.28 : x
  2. Step 2: Convert to fraction form
    230,885.64/346,380.39 = 81,136.28/x
  3. Step 3: Cross multiply
    230,885.64x = 346,380.39 × 81,136.28
  4. Step 4: Simplify right side
    230,885.64x = 28,104,014,577.65
  5. Step 5: Solve for x
    x = 28,104,014,577.65/230,885.64
  6. Step 6: Final answer
    x = 121,722.66

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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.