Home / 112,513.20-168,769.80-104,311.95

Finding the Fourth Proportional to 112,513.20, 168,769.80 and 104,311.95

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Solution

The fourth proportional to 112,513.20, 168,769.80 and 104,311.95 is: 156,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,513.20 : 168,769.80 = 104,311.95 : x
  2. Step 2: Convert to fraction form
    112,513.20/168,769.80 = 104,311.95/x
  3. Step 3: Cross multiply
    112,513.20x = 168,769.80 × 104,311.95
  4. Step 4: Simplify right side
    112,513.20x = 17,604,706,939.11
  5. Step 5: Solve for x
    x = 17,604,706,939.11/112,513.20
  6. Step 6: Final answer
    x = 156,467.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.