Home / 147,431.40-220,822.94-121,840.89

Finding the Fourth Proportional to 147,431.40, 220,822.94 and 121,840.89

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Solution

The fourth proportional to 147,431.40, 220,822.94 and 121,840.89 is: 182,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431.40 : 220,822.94 = 121,840.89 : x
  2. Step 2: Convert to fraction form
    147,431.40/220,822.94 = 121,840.89/x
  3. Step 3: Cross multiply
    147,431.40x = 220,822.94 × 121,840.89
  4. Step 4: Simplify right side
    147,431.40x = 26,905,263,542.02
  5. Step 5: Solve for x
    x = 26,905,263,542.02/147,431.40
  6. Step 6: Final answer
    x = 182,493.44

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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.