Home / 140,400.04-193,749.21-76,738.29

Finding the Fourth Proportional to 140,400.04, 193,749.21 and 76,738.29

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Solution

The fourth proportional to 140,400.04, 193,749.21 and 76,738.29 is: 105,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,400.04 : 193,749.21 = 76,738.29 : x
  2. Step 2: Convert to fraction form
    140,400.04/193,749.21 = 76,738.29/x
  3. Step 3: Cross multiply
    140,400.04x = 193,749.21 × 76,738.29
  4. Step 4: Simplify right side
    140,400.04x = 14,867,982,680.56
  5. Step 5: Solve for x
    x = 14,867,982,680.56/140,400.04
  6. Step 6: Final answer
    x = 105,897.28

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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.