Home / 143,136.52-197,537.34-82,718.23

Finding the Fourth Proportional to 143,136.52, 197,537.34 and 82,718.23

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Solution

The fourth proportional to 143,136.52, 197,537.34 and 82,718.23 is: 114,156.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,136.52 : 197,537.34 = 82,718.23 : x
  2. Step 2: Convert to fraction form
    143,136.52/197,537.34 = 82,718.23/x
  3. Step 3: Cross multiply
    143,136.52x = 197,537.34 × 82,718.23
  4. Step 4: Simplify right side
    143,136.52x = 16,339,939,123.71
  5. Step 5: Solve for x
    x = 16,339,939,123.71/143,136.52
  6. Step 6: Final answer
    x = 114,156.33

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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.