Home / 125,211.81-188,064.66-107,586.39

Finding the Fourth Proportional to 125,211.81, 188,064.66 and 107,586.39

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Solution

The fourth proportional to 125,211.81, 188,064.66 and 107,586.39 is: 161,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,211.81 : 188,064.66 = 107,586.39 : x
  2. Step 2: Convert to fraction form
    125,211.81/188,064.66 = 107,586.39/x
  3. Step 3: Cross multiply
    125,211.81x = 188,064.66 × 107,586.39
  4. Step 4: Simplify right side
    125,211.81x = 20,233,197,855.98
  5. Step 5: Solve for x
    x = 20,233,197,855.98/125,211.81
  6. Step 6: Final answer
    x = 161,591.77

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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.