Home / 139,709.48-209,566.14-39,869.62

Finding the Fourth Proportional to 139,709.48, 209,566.14 and 39,869.62

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Solution

The fourth proportional to 139,709.48, 209,566.14 and 39,869.62 is: 59,804.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,709.48 : 209,566.14 = 39,869.62 : x
  2. Step 2: Convert to fraction form
    139,709.48/209,566.14 = 39,869.62/x
  3. Step 3: Cross multiply
    139,709.48x = 209,566.14 × 39,869.62
  4. Step 4: Simplify right side
    139,709.48x = 8,355,322,366.67
  5. Step 5: Solve for x
    x = 8,355,322,366.67/139,709.48
  6. Step 6: Final answer
    x = 59,804.98

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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.