Home / 139,913.54-193,075.05-76,249.96

Finding the Fourth Proportional to 139,913.54, 193,075.05 and 76,249.96

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Solution

The fourth proportional to 139,913.54, 193,075.05 and 76,249.96 is: 105,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,913.54 : 193,075.05 = 76,249.96 : x
  2. Step 2: Convert to fraction form
    139,913.54/193,075.05 = 76,249.96/x
  3. Step 3: Cross multiply
    139,913.54x = 193,075.05 × 76,249.96
  4. Step 4: Simplify right side
    139,913.54x = 14,721,964,839.50
  5. Step 5: Solve for x
    x = 14,721,964,839.50/139,913.54
  6. Step 6: Final answer
    x = 105,221.87

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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.