Home / 230,136.94-317,586.42-128,160.17

Finding the Fourth Proportional to 230,136.94, 317,586.42 and 128,160.17

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Solution

The fourth proportional to 230,136.94, 317,586.42 and 128,160.17 is: 176,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,136.94 : 317,586.42 = 128,160.17 : x
  2. Step 2: Convert to fraction form
    230,136.94/317,586.42 = 128,160.17/x
  3. Step 3: Cross multiply
    230,136.94x = 317,586.42 × 128,160.17
  4. Step 4: Simplify right side
    230,136.94x = 40,701,929,576.89
  5. Step 5: Solve for x
    x = 40,701,929,576.89/230,136.94
  6. Step 6: Final answer
    x = 176,859.61

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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.