Home / 97,028.82-133,855.50-70,128.72

Finding the Fourth Proportional to 97,028.82, 133,855.50 and 70,128.72

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Solution

The fourth proportional to 97,028.82, 133,855.50 and 70,128.72 is: 96,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,028.82 : 133,855.50 = 70,128.72 : x
  2. Step 2: Convert to fraction form
    97,028.82/133,855.50 = 70,128.72/x
  3. Step 3: Cross multiply
    97,028.82x = 133,855.50 × 70,128.72
  4. Step 4: Simplify right side
    97,028.82x = 9,387,114,879.96
  5. Step 5: Solve for x
    x = 9,387,114,879.96/97,028.82
  6. Step 6: Final answer
    x = 96,745.64

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1.5x scale

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.