Home / 230,586.30-318,160.71-139,989.96

Finding the Fourth Proportional to 230,586.30, 318,160.71 and 139,989.96

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Solution

The fourth proportional to 230,586.30, 318,160.71 and 139,989.96 is: 193,156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,586.30 : 318,160.71 = 139,989.96 : x
  2. Step 2: Convert to fraction form
    230,586.30/318,160.71 = 139,989.96/x
  3. Step 3: Cross multiply
    230,586.30x = 318,160.71 × 139,989.96
  4. Step 4: Simplify right side
    230,586.30x = 44,539,305,066.47
  5. Step 5: Solve for x
    x = 44,539,305,066.47/230,586.30
  6. Step 6: Final answer
    x = 193,156.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.