Home / 117,817.38-162,535.14-79,564.50

Finding the Fourth Proportional to 117,817.38, 162,535.14 and 79,564.50

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Solution

The fourth proportional to 117,817.38, 162,535.14 and 79,564.50 is: 109,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,817.38 : 162,535.14 = 79,564.50 : x
  2. Step 2: Convert to fraction form
    117,817.38/162,535.14 = 79,564.50/x
  3. Step 3: Cross multiply
    117,817.38x = 162,535.14 × 79,564.50
  4. Step 4: Simplify right side
    117,817.38x = 12,932,027,146.53
  5. Step 5: Solve for x
    x = 12,932,027,146.53/117,817.38
  6. Step 6: Final answer
    x = 109,763.32

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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.