Home / 137,053.44-189,240.96-105,171.84

Finding the Fourth Proportional to 137,053.44, 189,240.96 and 105,171.84

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Solution

The fourth proportional to 137,053.44, 189,240.96 and 105,171.84 is: 145,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,053.44 : 189,240.96 = 105,171.84 : x
  2. Step 2: Convert to fraction form
    137,053.44/189,240.96 = 105,171.84/x
  3. Step 3: Cross multiply
    137,053.44x = 189,240.96 × 105,171.84
  4. Step 4: Simplify right side
    137,053.44x = 19,902,819,966.57
  5. Step 5: Solve for x
    x = 19,902,819,966.57/137,053.44
  6. Step 6: Final answer
    x = 145,219.41

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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.