Home / 140,780.08-194,237.80-80,328.97

Finding the Fourth Proportional to 140,780.08, 194,237.80 and 80,328.97

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Solution

The fourth proportional to 140,780.08, 194,237.80 and 80,328.97 is: 110,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,780.08 : 194,237.80 = 80,328.97 : x
  2. Step 2: Convert to fraction form
    140,780.08/194,237.80 = 80,328.97/x
  3. Step 3: Cross multiply
    140,780.08x = 194,237.80 × 80,328.97
  4. Step 4: Simplify right side
    140,780.08x = 15,602,922,409.07
  5. Step 5: Solve for x
    x = 15,602,922,409.07/140,780.08
  6. Step 6: Final answer
    x = 110,831.89

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1.5x scale

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.