Home / 136,653.08-188,669.05-85,735.67

Finding the Fourth Proportional to 136,653.08, 188,669.05 and 85,735.67

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Solution

The fourth proportional to 136,653.08, 188,669.05 and 85,735.67 is: 118,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,653.08 : 188,669.05 = 85,735.67 : x
  2. Step 2: Convert to fraction form
    136,653.08/188,669.05 = 85,735.67/x
  3. Step 3: Cross multiply
    136,653.08x = 188,669.05 × 85,735.67
  4. Step 4: Simplify right side
    136,653.08x = 16,175,666,252.33
  5. Step 5: Solve for x
    x = 16,175,666,252.33/136,653.08
  6. Step 6: Final answer
    x = 118,370.31

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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.