Home / 126,138.82-189,208.98-37,393.08

Finding the Fourth Proportional to 126,138.82, 189,208.98 and 37,393.08

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Solution

The fourth proportional to 126,138.82, 189,208.98 and 37,393.08 is: 56,089.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138.82 : 189,208.98 = 37,393.08 : x
  2. Step 2: Convert to fraction form
    126,138.82/189,208.98 = 37,393.08/x
  3. Step 3: Cross multiply
    126,138.82x = 189,208.98 × 37,393.08
  4. Step 4: Simplify right side
    126,138.82x = 7,075,106,525.86
  5. Step 5: Solve for x
    x = 7,075,106,525.86/126,138.82
  6. Step 6: Final answer
    x = 56,089.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.