Home / 210,093.75-315,143.36-69,852.38

Finding the Fourth Proportional to 210,093.75, 315,143.36 and 69,852.38

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Solution

The fourth proportional to 210,093.75, 315,143.36 and 69,852.38 is: 104,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,093.75 : 315,143.36 = 69,852.38 : x
  2. Step 2: Convert to fraction form
    210,093.75/315,143.36 = 69,852.38/x
  3. Step 3: Cross multiply
    210,093.75x = 315,143.36 × 69,852.38
  4. Step 4: Simplify right side
    210,093.75x = 22,013,512,074.16
  5. Step 5: Solve for x
    x = 22,013,512,074.16/210,093.75
  6. Step 6: Final answer
    x = 104,779.47

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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.