Home / 105,019.99-157,482.60-30,122.95

Finding the Fourth Proportional to 105,019.99, 157,482.60 and 30,122.95

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Solution

The fourth proportional to 105,019.99, 157,482.60 and 30,122.95 is: 45,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,019.99 : 157,482.60 = 30,122.95 : x
  2. Step 2: Convert to fraction form
    105,019.99/157,482.60 = 30,122.95/x
  3. Step 3: Cross multiply
    105,019.99x = 157,482.60 × 30,122.95
  4. Step 4: Simplify right side
    105,019.99x = 4,743,840,485.67
  5. Step 5: Solve for x
    x = 4,743,840,485.67/105,019.99
  6. Step 6: Final answer
    x = 45,170.83

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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.