Home / 117,738.90-162,437.67-69,991.02

Finding the Fourth Proportional to 117,738.90, 162,437.67 and 69,991.02

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Solution

The fourth proportional to 117,738.90, 162,437.67 and 69,991.02 is: 96,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,738.90 : 162,437.67 = 69,991.02 : x
  2. Step 2: Convert to fraction form
    117,738.90/162,437.67 = 69,991.02/x
  3. Step 3: Cross multiply
    117,738.90x = 162,437.67 × 69,991.02
  4. Step 4: Simplify right side
    117,738.90x = 11,369,178,209.72
  5. Step 5: Solve for x
    x = 11,369,178,209.72/117,738.90
  6. Step 6: Final answer
    x = 96,562.63

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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.