Home / 142,739.62-214,127.82-47,929.05

Finding the Fourth Proportional to 142,739.62, 214,127.82 and 47,929.05

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Solution

The fourth proportional to 142,739.62, 214,127.82 and 47,929.05 is: 71,899.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,739.62 : 214,127.82 = 47,929.05 : x
  2. Step 2: Convert to fraction form
    142,739.62/214,127.82 = 47,929.05/x
  3. Step 3: Cross multiply
    142,739.62x = 214,127.82 × 47,929.05
  4. Step 4: Simplify right side
    142,739.62x = 10,262,942,991.17
  5. Step 5: Solve for x
    x = 10,262,942,991.17/142,739.62
  6. Step 6: Final answer
    x = 71,899.75

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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.