Home / 103,678.03-155,517.05-51,190.03

Finding the Fourth Proportional to 103,678.03, 155,517.05 and 51,190.03

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Solution

The fourth proportional to 103,678.03, 155,517.05 and 51,190.03 is: 76,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.03 : 155,517.05 = 51,190.03 : x
  2. Step 2: Convert to fraction form
    103,678.03/155,517.05 = 51,190.03/x
  3. Step 3: Cross multiply
    103,678.03x = 155,517.05 × 51,190.03
  4. Step 4: Simplify right side
    103,678.03x = 7,960,922,455.01
  5. Step 5: Solve for x
    x = 7,960,922,455.01/103,678.03
  6. Step 6: Final answer
    x = 76,785.05

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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.