Home / 97,170.07-134,128.25-56,896.78

Finding the Fourth Proportional to 97,170.07, 134,128.25 and 56,896.78

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Solution

The fourth proportional to 97,170.07, 134,128.25 and 56,896.78 is: 78,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,170.07 : 134,128.25 = 56,896.78 : x
  2. Step 2: Convert to fraction form
    97,170.07/134,128.25 = 56,896.78/x
  3. Step 3: Cross multiply
    97,170.07x = 134,128.25 × 56,896.78
  4. Step 4: Simplify right side
    97,170.07x = 7,631,464,576.91
  5. Step 5: Solve for x
    x = 7,631,464,576.91/97,170.07
  6. Step 6: Final answer
    x = 78,537.20

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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.