Home / 208,544.76-312,606.80-82,136.16

Finding the Fourth Proportional to 208,544.76, 312,606.80 and 82,136.16

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Solution

The fourth proportional to 208,544.76, 312,606.80 and 82,136.16 is: 123,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,544.76 : 312,606.80 = 82,136.16 : x
  2. Step 2: Convert to fraction form
    208,544.76/312,606.80 = 82,136.16/x
  3. Step 3: Cross multiply
    208,544.76x = 312,606.80 × 82,136.16
  4. Step 4: Simplify right side
    208,544.76x = 25,676,322,141.89
  5. Step 5: Solve for x
    x = 25,676,322,141.89/208,544.76
  6. Step 6: Final answer
    x = 123,121.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.