Home / 210,094.75-315,144.86-69,853.38

Finding the Fourth Proportional to 210,094.75, 315,144.86 and 69,853.38

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Solution

The fourth proportional to 210,094.75, 315,144.86 and 69,853.38 is: 104,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,094.75 : 315,144.86 = 69,853.38 : x
  2. Step 2: Convert to fraction form
    210,094.75/315,144.86 = 69,853.38/x
  3. Step 3: Cross multiply
    210,094.75x = 315,144.86 × 69,853.38
  4. Step 4: Simplify right side
    210,094.75x = 22,013,933,660.63
  5. Step 5: Solve for x
    x = 22,013,933,660.63/210,094.75
  6. Step 6: Final answer
    x = 104,780.98

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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.