Home / 104,734.08-156,888-83,709.36

Finding the Fourth Proportional to 104,734.08, 156,888 and 83,709.36

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Solution

The fourth proportional to 104,734.08, 156,888 and 83,709.36 is: 125,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,734.08 : 156,888 = 83,709.36 : x
  2. Step 2: Convert to fraction form
    104,734.08/156,888 = 83,709.36/x
  3. Step 3: Cross multiply
    104,734.08x = 156,888 × 83,709.36
  4. Step 4: Simplify right side
    104,734.08x = 13,132,994,071.68
  5. Step 5: Solve for x
    x = 13,132,994,071.68/104,734.08
  6. Step 6: Final answer
    x = 125,393.70

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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.