Home / 189,968.82-284,671.24-105,612.94

Finding the Fourth Proportional to 189,968.82, 284,671.24 and 105,612.94

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Solution

The fourth proportional to 189,968.82, 284,671.24 and 105,612.94 is: 158,262.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,968.82 : 284,671.24 = 105,612.94 : x
  2. Step 2: Convert to fraction form
    189,968.82/284,671.24 = 105,612.94/x
  3. Step 3: Cross multiply
    189,968.82x = 284,671.24 × 105,612.94
  4. Step 4: Simplify right side
    189,968.82x = 30,064,966,681.65
  5. Step 5: Solve for x
    x = 30,064,966,681.65/189,968.82
  6. Step 6: Final answer
    x = 158,262.64

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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.