Home / 207,915.87-286,923.48-117,271.56

Finding the Fourth Proportional to 207,915.87, 286,923.48 and 117,271.56

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Solution

The fourth proportional to 207,915.87, 286,923.48 and 117,271.56 is: 161,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,915.87 : 286,923.48 = 117,271.56 : x
  2. Step 2: Convert to fraction form
    207,915.87/286,923.48 = 117,271.56/x
  3. Step 3: Cross multiply
    207,915.87x = 286,923.48 × 117,271.56
  4. Step 4: Simplify right side
    207,915.87x = 33,647,964,100.23
  5. Step 5: Solve for x
    x = 33,647,964,100.23/207,915.87
  6. Step 6: Final answer
    x = 161,834.52

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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.