Home / 120,921.93-181,133.42-70,849.96

Finding the Fourth Proportional to 120,921.93, 181,133.42 and 70,849.96

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Solution

The fourth proportional to 120,921.93, 181,133.42 and 70,849.96 is: 106,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.93 : 181,133.42 = 70,849.96 : x
  2. Step 2: Convert to fraction form
    120,921.93/181,133.42 = 70,849.96/x
  3. Step 3: Cross multiply
    120,921.93x = 181,133.42 × 70,849.96
  4. Step 4: Simplify right side
    120,921.93x = 12,833,294,754.58
  5. Step 5: Solve for x
    x = 12,833,294,754.58/120,921.93
  6. Step 6: Final answer
    x = 106,128.76

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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.