Home / 105,015.61-157,546.64-30,135.97

Finding the Fourth Proportional to 105,015.61, 157,546.64 and 30,135.97

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Solution

The fourth proportional to 105,015.61, 157,546.64 and 30,135.97 is: 45,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,015.61 : 157,546.64 = 30,135.97 : x
  2. Step 2: Convert to fraction form
    105,015.61/157,546.64 = 30,135.97/x
  3. Step 3: Cross multiply
    105,015.61x = 157,546.64 × 30,135.97
  4. Step 4: Simplify right side
    105,015.61x = 4,747,820,816.64
  5. Step 5: Solve for x
    x = 4,747,820,816.64/105,015.61
  6. Step 6: Final answer
    x = 45,210.62

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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.