Home / 189,136.92-261,005.40-103,096.72

Finding the Fourth Proportional to 189,136.92, 261,005.40 and 103,096.72

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Solution

The fourth proportional to 189,136.92, 261,005.40 and 103,096.72 is: 142,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,136.92 : 261,005.40 = 103,096.72 : x
  2. Step 2: Convert to fraction form
    189,136.92/261,005.40 = 103,096.72/x
  3. Step 3: Cross multiply
    189,136.92x = 261,005.40 × 103,096.72
  4. Step 4: Simplify right side
    189,136.92x = 26,908,800,642.29
  5. Step 5: Solve for x
    x = 26,908,800,642.29/189,136.92
  6. Step 6: Final answer
    x = 142,271.54

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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.