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Finding the Fourth Proportional to 142,754.05, 214,048.07 and 54,014.39

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Solution

The fourth proportional to 142,754.05, 214,048.07 and 54,014.39 is: 80,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,754.05 : 214,048.07 = 54,014.39 : x
  2. Step 2: Convert to fraction form
    142,754.05/214,048.07 = 54,014.39/x
  3. Step 3: Cross multiply
    142,754.05x = 214,048.07 × 54,014.39
  4. Step 4: Simplify right side
    142,754.05x = 11,561,676,800.67
  5. Step 5: Solve for x
    x = 11,561,676,800.67/142,754.05
  6. Step 6: Final answer
    x = 80,990.19

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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.