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Finding the Fourth Proportional to 134,698.60, 202,047.90 and 103,205.80

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Solution

The fourth proportional to 134,698.60, 202,047.90 and 103,205.80 is: 154,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,698.60 : 202,047.90 = 103,205.80 : x
  2. Step 2: Convert to fraction form
    134,698.60/202,047.90 = 103,205.80/x
  3. Step 3: Cross multiply
    134,698.60x = 202,047.90 × 103,205.80
  4. Step 4: Simplify right side
    134,698.60x = 20,852,515,157.82
  5. Step 5: Solve for x
    x = 20,852,515,157.82/134,698.60
  6. Step 6: Final answer
    x = 154,808.70

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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.