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Finding the Fourth Proportional to 145,687.01, 200,978.19 and 94,715.73

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Solution

The fourth proportional to 145,687.01, 200,978.19 and 94,715.73 is: 130,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,687.01 : 200,978.19 = 94,715.73 : x
  2. Step 2: Convert to fraction form
    145,687.01/200,978.19 = 94,715.73/x
  3. Step 3: Cross multiply
    145,687.01x = 200,978.19 × 94,715.73
  4. Step 4: Simplify right side
    145,687.01x = 19,035,795,979.93
  5. Step 5: Solve for x
    x = 19,035,795,979.93/145,687.01
  6. Step 6: Final answer
    x = 130,662.28

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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.