Home / 112,261.30-154,916.73-66,915.90

Finding the Fourth Proportional to 112,261.30, 154,916.73 and 66,915.90

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Solution

The fourth proportional to 112,261.30, 154,916.73 and 66,915.90 is: 92,341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,261.30 : 154,916.73 = 66,915.90 : x
  2. Step 2: Convert to fraction form
    112,261.30/154,916.73 = 66,915.90/x
  3. Step 3: Cross multiply
    112,261.30x = 154,916.73 × 66,915.90
  4. Step 4: Simplify right side
    112,261.30x = 10,366,392,413.01
  5. Step 5: Solve for x
    x = 10,366,392,413.01/112,261.30
  6. Step 6: Final answer
    x = 92,341.64

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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.