Home / 139,949.19-193,125.74-79,525.35

Finding the Fourth Proportional to 139,949.19, 193,125.74 and 79,525.35

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Solution

The fourth proportional to 139,949.19, 193,125.74 and 79,525.35 is: 109,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,949.19 : 193,125.74 = 79,525.35 : x
  2. Step 2: Convert to fraction form
    139,949.19/193,125.74 = 79,525.35/x
  3. Step 3: Cross multiply
    139,949.19x = 193,125.74 × 79,525.35
  4. Step 4: Simplify right side
    139,949.19x = 15,358,391,669.88
  5. Step 5: Solve for x
    x = 15,358,391,669.88/139,949.19
  6. Step 6: Final answer
    x = 109,742.63

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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.