Home / 137,289.24-189,437.40-76,862.43

Finding the Fourth Proportional to 137,289.24, 189,437.40 and 76,862.43

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Solution

The fourth proportional to 137,289.24, 189,437.40 and 76,862.43 is: 106,057.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,289.24 : 189,437.40 = 76,862.43 : x
  2. Step 2: Convert to fraction form
    137,289.24/189,437.40 = 76,862.43/x
  3. Step 3: Cross multiply
    137,289.24x = 189,437.40 × 76,862.43
  4. Step 4: Simplify right side
    137,289.24x = 14,560,618,896.88
  5. Step 5: Solve for x
    x = 14,560,618,896.88/137,289.24
  6. Step 6: Final answer
    x = 106,057.98

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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.