Home / 193,345-266,816.82-112,828.12

Finding the Fourth Proportional to 193,345, 266,816.82 and 112,828.12

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Solution

The fourth proportional to 193,345, 266,816.82 and 112,828.12 is: 155,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,345 : 266,816.82 = 112,828.12 : x
  2. Step 2: Convert to fraction form
    193,345/266,816.82 = 112,828.12/x
  3. Step 3: Cross multiply
    193,345x = 266,816.82 × 112,828.12
  4. Step 4: Simplify right side
    193,345x = 30,104,440,184.98
  5. Step 5: Solve for x
    x = 30,104,440,184.98/193,345
  6. Step 6: Final answer
    x = 155,703.23

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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.