Home / 142,669.20-214,003.36-42,829

Finding the Fourth Proportional to 142,669.20, 214,003.36 and 42,829

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Solution

The fourth proportional to 142,669.20, 214,003.36 and 42,829 is: 64,243.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,669.20 : 214,003.36 = 42,829 : x
  2. Step 2: Convert to fraction form
    142,669.20/214,003.36 = 42,829/x
  3. Step 3: Cross multiply
    142,669.20x = 214,003.36 × 42,829
  4. Step 4: Simplify right side
    142,669.20x = 9,165,549,905.44
  5. Step 5: Solve for x
    x = 9,165,549,905.44/142,669.20
  6. Step 6: Final answer
    x = 64,243.37

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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.