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Finding the Fourth Proportional to 146,057.40, 218,999.70 and 76,073.40

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Solution

The fourth proportional to 146,057.40, 218,999.70 and 76,073.40 is: 114,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,057.40 : 218,999.70 = 76,073.40 : x
  2. Step 2: Convert to fraction form
    146,057.40/218,999.70 = 76,073.40/x
  3. Step 3: Cross multiply
    146,057.40x = 218,999.70 × 76,073.40
  4. Step 4: Simplify right side
    146,057.40x = 16,660,051,777.98
  5. Step 5: Solve for x
    x = 16,660,051,777.98/146,057.40
  6. Step 6: Final answer
    x = 114,065.10

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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.