Home / 116,263.26-160,492.05-78,588.54

Finding the Fourth Proportional to 116,263.26, 160,492.05 and 78,588.54

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Solution

The fourth proportional to 116,263.26, 160,492.05 and 78,588.54 is: 108,485.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,263.26 : 160,492.05 = 78,588.54 : x
  2. Step 2: Convert to fraction form
    116,263.26/160,492.05 = 78,588.54/x
  3. Step 3: Cross multiply
    116,263.26x = 160,492.05 × 78,588.54
  4. Step 4: Simplify right side
    116,263.26x = 12,612,835,891.11
  5. Step 5: Solve for x
    x = 12,612,835,891.11/116,263.26
  6. Step 6: Final answer
    x = 108,485.14

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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.