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Finding the Fourth Proportional to 146,253, 201,829.32 and 79,185

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Solution

The fourth proportional to 146,253, 201,829.32 and 79,185 is: 109,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,253 : 201,829.32 = 79,185 : x
  2. Step 2: Convert to fraction form
    146,253/201,829.32 = 79,185/x
  3. Step 3: Cross multiply
    146,253x = 201,829.32 × 79,185
  4. Step 4: Simplify right side
    146,253x = 15,981,854,704.20
  5. Step 5: Solve for x
    x = 15,981,854,704.20/146,253
  6. Step 6: Final answer
    x = 109,275.40

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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.