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Finding the Fourth Proportional to 145,109, 217,663.47 and 95,177.56

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Solution

The fourth proportional to 145,109, 217,663.47 and 95,177.56 is: 142,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,109 : 217,663.47 = 95,177.56 : x
  2. Step 2: Convert to fraction form
    145,109/217,663.47 = 95,177.56/x
  3. Step 3: Cross multiply
    145,109x = 217,663.47 × 95,177.56
  4. Step 4: Simplify right side
    145,109x = 20,716,677,975.73
  5. Step 5: Solve for x
    x = 20,716,677,975.73/145,109
  6. Step 6: Final answer
    x = 142,766.32

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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.