Home / 142,923.56-214,513.82-76,420.53

Finding the Fourth Proportional to 142,923.56, 214,513.82 and 76,420.53

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Solution

The fourth proportional to 142,923.56, 214,513.82 and 76,420.53 is: 114,699.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,923.56 : 214,513.82 = 76,420.53 : x
  2. Step 2: Convert to fraction form
    142,923.56/214,513.82 = 76,420.53/x
  3. Step 3: Cross multiply
    142,923.56x = 214,513.82 × 76,420.53
  4. Step 4: Simplify right side
    142,923.56x = 16,393,259,721.20
  5. Step 5: Solve for x
    x = 16,393,259,721.20/142,923.56
  6. Step 6: Final answer
    x = 114,699.50

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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.