Home / 109,949.60-164,924.40-83,705.60

Finding the Fourth Proportional to 109,949.60, 164,924.40 and 83,705.60

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Solution

The fourth proportional to 109,949.60, 164,924.40 and 83,705.60 is: 125,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,949.60 : 164,924.40 = 83,705.60 : x
  2. Step 2: Convert to fraction form
    109,949.60/164,924.40 = 83,705.60/x
  3. Step 3: Cross multiply
    109,949.60x = 164,924.40 × 83,705.60
  4. Step 4: Simplify right side
    109,949.60x = 13,805,095,856.64
  5. Step 5: Solve for x
    x = 13,805,095,856.64/109,949.60
  6. Step 6: Final answer
    x = 125,558.40

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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.