Home / 117,948.89-162,768.35-64,234.81

Finding the Fourth Proportional to 117,948.89, 162,768.35 and 64,234.81

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Solution

The fourth proportional to 117,948.89, 162,768.35 and 64,234.81 is: 88,643.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,948.89 : 162,768.35 = 64,234.81 : x
  2. Step 2: Convert to fraction form
    117,948.89/162,768.35 = 64,234.81/x
  3. Step 3: Cross multiply
    117,948.89x = 162,768.35 × 64,234.81
  4. Step 4: Simplify right side
    117,948.89x = 10,455,394,036.26
  5. Step 5: Solve for x
    x = 10,455,394,036.26/117,948.89
  6. Step 6: Final answer
    x = 88,643.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.