Home / 165,965.20-248,947.80-102,835.60

Finding the Fourth Proportional to 165,965.20, 248,947.80 and 102,835.60

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Solution

The fourth proportional to 165,965.20, 248,947.80 and 102,835.60 is: 154,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,965.20 : 248,947.80 = 102,835.60 : x
  2. Step 2: Convert to fraction form
    165,965.20/248,947.80 = 102,835.60/x
  3. Step 3: Cross multiply
    165,965.20x = 248,947.80 × 102,835.60
  4. Step 4: Simplify right side
    165,965.20x = 25,600,696,381.68
  5. Step 5: Solve for x
    x = 25,600,696,381.68/165,965.20
  6. Step 6: Final answer
    x = 154,253.40

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1.5x scale

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.