Home / 139,669.44-209,340.09-64,631.04

Finding the Fourth Proportional to 139,669.44, 209,340.09 and 64,631.04

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Solution

The fourth proportional to 139,669.44, 209,340.09 and 64,631.04 is: 96,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,669.44 : 209,340.09 = 64,631.04 : x
  2. Step 2: Convert to fraction form
    139,669.44/209,340.09 = 64,631.04/x
  3. Step 3: Cross multiply
    139,669.44x = 209,340.09 × 64,631.04
  4. Step 4: Simplify right side
    139,669.44x = 13,529,867,730.39
  5. Step 5: Solve for x
    x = 13,529,867,730.39/139,669.44
  6. Step 6: Final answer
    x = 96,870.64

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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.