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Finding the Fourth Proportional to 102,562.80, 153,844.20 and 83,900.40

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Solution

The fourth proportional to 102,562.80, 153,844.20 and 83,900.40 is: 125,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,562.80 : 153,844.20 = 83,900.40 : x
  2. Step 2: Convert to fraction form
    102,562.80/153,844.20 = 83,900.40/x
  3. Step 3: Cross multiply
    102,562.80x = 153,844.20 × 83,900.40
  4. Step 4: Simplify right side
    102,562.80x = 12,907,589,917.68
  5. Step 5: Solve for x
    x = 12,907,589,917.68/102,562.80
  6. Step 6: Final answer
    x = 125,850.60

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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.