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Finding the Fourth Proportional to 146,130, 201,659.40 and 79,062

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Solution

The fourth proportional to 146,130, 201,659.40 and 79,062 is: 109,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,130 : 201,659.40 = 79,062 : x
  2. Step 2: Convert to fraction form
    146,130/201,659.40 = 79,062/x
  3. Step 3: Cross multiply
    146,130x = 201,659.40 × 79,062
  4. Step 4: Simplify right side
    146,130x = 15,943,595,482.80
  5. Step 5: Solve for x
    x = 15,943,595,482.80/146,130
  6. Step 6: Final answer
    x = 109,105.56

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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.