Home / 140,072.91-193,299.37-76,409.34

Finding the Fourth Proportional to 140,072.91, 193,299.37 and 76,409.34

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Solution

The fourth proportional to 140,072.91, 193,299.37 and 76,409.34 is: 105,444.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,072.91 : 193,299.37 = 76,409.34 : x
  2. Step 2: Convert to fraction form
    140,072.91/193,299.37 = 76,409.34/x
  3. Step 3: Cross multiply
    140,072.91x = 193,299.37 × 76,409.34
  4. Step 4: Simplify right side
    140,072.91x = 14,769,877,284.12
  5. Step 5: Solve for x
    x = 14,769,877,284.12/140,072.91
  6. Step 6: Final answer
    x = 105,444.21

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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.