Home / 139,747.80-192,852.70-76,085.40

Finding the Fourth Proportional to 139,747.80, 192,852.70 and 76,085.40

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Solution

The fourth proportional to 139,747.80, 192,852.70 and 76,085.40 is: 104,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,747.80 : 192,852.70 = 76,085.40 : x
  2. Step 2: Convert to fraction form
    139,747.80/192,852.70 = 76,085.40/x
  3. Step 3: Cross multiply
    139,747.80x = 192,852.70 × 76,085.40
  4. Step 4: Simplify right side
    139,747.80x = 14,673,274,820.58
  5. Step 5: Solve for x
    x = 14,673,274,820.58/139,747.80
  6. Step 6: Final answer
    x = 104,998.25

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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.