Home / 97,028.69-133,855.34-70,128.59

Finding the Fourth Proportional to 97,028.69, 133,855.34 and 70,128.59

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Solution

The fourth proportional to 97,028.69, 133,855.34 and 70,128.59 is: 96,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,028.69 : 133,855.34 = 70,128.59 : x
  2. Step 2: Convert to fraction form
    97,028.69/133,855.34 = 70,128.59/x
  3. Step 3: Cross multiply
    97,028.69x = 133,855.34 × 70,128.59
  4. Step 4: Simplify right side
    97,028.69x = 9,387,085,238.25
  5. Step 5: Solve for x
    x = 9,387,085,238.25/97,028.69
  6. Step 6: Final answer
    x = 96,745.46

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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.