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Finding the Fourth Proportional to 190,174.68, 285,063.96 and 63,719.64

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Solution

The fourth proportional to 190,174.68, 285,063.96 and 63,719.64 is: 95,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,174.68 : 285,063.96 = 63,719.64 : x
  2. Step 2: Convert to fraction form
    190,174.68/285,063.96 = 63,719.64/x
  3. Step 3: Cross multiply
    190,174.68x = 285,063.96 × 63,719.64
  4. Step 4: Simplify right side
    190,174.68x = 18,164,172,908.17
  5. Step 5: Solve for x
    x = 18,164,172,908.17/190,174.68
  6. Step 6: Final answer
    x = 95,513.10

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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.