Home / 140,939.73-194,497.65-76,409.46

Finding the Fourth Proportional to 140,939.73, 194,497.65 and 76,409.46

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Solution

The fourth proportional to 140,939.73, 194,497.65 and 76,409.46 is: 105,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,939.73 : 194,497.65 = 76,409.46 : x
  2. Step 2: Convert to fraction form
    140,939.73/194,497.65 = 76,409.46/x
  3. Step 3: Cross multiply
    140,939.73x = 194,497.65 × 76,409.46
  4. Step 4: Simplify right side
    140,939.73x = 14,861,460,407.77
  5. Step 5: Solve for x
    x = 14,861,460,407.77/140,939.73
  6. Step 6: Final answer
    x = 105,445.50

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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.