Home / 117,518.90-162,178.81-69,772.37

Finding the Fourth Proportional to 117,518.90, 162,178.81 and 69,772.37

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Solution

The fourth proportional to 117,518.90, 162,178.81 and 69,772.37 is: 96,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,518.90 : 162,178.81 = 69,772.37 : x
  2. Step 2: Convert to fraction form
    117,518.90/162,178.81 = 69,772.37/x
  3. Step 3: Cross multiply
    117,518.90x = 162,178.81 × 69,772.37
  4. Step 4: Simplify right side
    117,518.90x = 11,315,598,952.15
  5. Step 5: Solve for x
    x = 11,315,598,952.15/117,518.90
  6. Step 6: Final answer
    x = 96,287.49

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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.