Home / 112,906.23-155,812.74-61,915.73

Finding the Fourth Proportional to 112,906.23, 155,812.74 and 61,915.73

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Solution

The fourth proportional to 112,906.23, 155,812.74 and 61,915.73 is: 85,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,906.23 : 155,812.74 = 61,915.73 : x
  2. Step 2: Convert to fraction form
    112,906.23/155,812.74 = 61,915.73/x
  3. Step 3: Cross multiply
    112,906.23x = 155,812.74 × 61,915.73
  4. Step 4: Simplify right side
    112,906.23x = 9,647,258,761.34
  5. Step 5: Solve for x
    x = 9,647,258,761.34/112,906.23
  6. Step 6: Final answer
    x = 85,444.88

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1.5x scale

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.