Home / 112,284-154,951.92-61,983.36

Finding the Fourth Proportional to 112,284, 154,951.92 and 61,983.36

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Solution

The fourth proportional to 112,284, 154,951.92 and 61,983.36 is: 85,537.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,284 : 154,951.92 = 61,983.36 : x
  2. Step 2: Convert to fraction form
    112,284/154,951.92 = 61,983.36/x
  3. Step 3: Cross multiply
    112,284x = 154,951.92 × 61,983.36
  4. Step 4: Simplify right side
    112,284x = 9,604,440,640.05
  5. Step 5: Solve for x
    x = 9,604,440,640.05/112,284
  6. Step 6: Final answer
    x = 85,537.04

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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.