Home / 190,016.46-262,211.85-105,128.46

Finding the Fourth Proportional to 190,016.46, 262,211.85 and 105,128.46

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Solution

The fourth proportional to 190,016.46, 262,211.85 and 105,128.46 is: 145,071.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,016.46 : 262,211.85 = 105,128.46 : x
  2. Step 2: Convert to fraction form
    190,016.46/262,211.85 = 105,128.46/x
  3. Step 3: Cross multiply
    190,016.46x = 262,211.85 × 105,128.46
  4. Step 4: Simplify right side
    190,016.46x = 27,565,927,984.25
  5. Step 5: Solve for x
    x = 27,565,927,984.25/190,016.46
  6. Step 6: Final answer
    x = 145,071.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.