Home / 142,784.48-214,187.34-42,936.68

Finding the Fourth Proportional to 142,784.48, 214,187.34 and 42,936.68

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Solution

The fourth proportional to 142,784.48, 214,187.34 and 42,936.68 is: 64,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,784.48 : 214,187.34 = 42,936.68 : x
  2. Step 2: Convert to fraction form
    142,784.48/214,187.34 = 42,936.68/x
  3. Step 3: Cross multiply
    142,784.48x = 214,187.34 × 42,936.68
  4. Step 4: Simplify right side
    142,784.48x = 9,196,493,277.63
  5. Step 5: Solve for x
    x = 9,196,493,277.63/142,784.48
  6. Step 6: Final answer
    x = 64,408.21

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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.