Home / 189,136.54-261,005.25-103,096.45

Finding the Fourth Proportional to 189,136.54, 261,005.25 and 103,096.45

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Solution

The fourth proportional to 189,136.54, 261,005.25 and 103,096.45 is: 142,271.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,136.54 : 261,005.25 = 103,096.45 : x
  2. Step 2: Convert to fraction form
    189,136.54/261,005.25 = 103,096.45/x
  3. Step 3: Cross multiply
    189,136.54x = 261,005.25 × 103,096.45
  4. Step 4: Simplify right side
    189,136.54x = 26,908,714,706.36
  5. Step 5: Solve for x
    x = 26,908,714,706.36/189,136.54
  6. Step 6: Final answer
    x = 142,271.37

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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.