Home / 137,105.03-189,204.30-76,675.92

Finding the Fourth Proportional to 137,105.03, 189,204.30 and 76,675.92

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Solution

The fourth proportional to 137,105.03, 189,204.30 and 76,675.92 is: 105,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,105.03 : 189,204.30 = 76,675.92 : x
  2. Step 2: Convert to fraction form
    137,105.03/189,204.30 = 76,675.92/x
  3. Step 3: Cross multiply
    137,105.03x = 189,204.30 × 76,675.92
  4. Step 4: Simplify right side
    137,105.03x = 14,507,413,427.66
  5. Step 5: Solve for x
    x = 14,507,413,427.66/137,105.03
  6. Step 6: Final answer
    x = 105,812.40

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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.