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Finding the Fourth Proportional to 146,064.80, 201,568.28 and 78,996.80

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Solution

The fourth proportional to 146,064.80, 201,568.28 and 78,996.80 is: 109,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,064.80 : 201,568.28 = 78,996.80 : x
  2. Step 2: Convert to fraction form
    146,064.80/201,568.28 = 78,996.80/x
  3. Step 3: Cross multiply
    146,064.80x = 201,568.28 × 78,996.80
  4. Step 4: Simplify right side
    146,064.80x = 15,923,249,101.50
  5. Step 5: Solve for x
    x = 15,923,249,101.50/146,064.80
  6. Step 6: Final answer
    x = 109,014.97

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1.5x scale

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.