Home / 103,072.19-154,630.34-31,993.28

Finding the Fourth Proportional to 103,072.19, 154,630.34 and 31,993.28

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Solution

The fourth proportional to 103,072.19, 154,630.34 and 31,993.28 is: 47,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,072.19 : 154,630.34 = 31,993.28 : x
  2. Step 2: Convert to fraction form
    103,072.19/154,630.34 = 31,993.28/x
  3. Step 3: Cross multiply
    103,072.19x = 154,630.34 × 31,993.28
  4. Step 4: Simplify right side
    103,072.19x = 4,947,130,831.00
  5. Step 5: Solve for x
    x = 4,947,130,831.00/103,072.19
  6. Step 6: Final answer
    x = 47,996.76

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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.