Home / 126,135.72-174,068.66-69,549.12

Finding the Fourth Proportional to 126,135.72, 174,068.66 and 69,549.12

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Solution

The fourth proportional to 126,135.72, 174,068.66 and 69,549.12 is: 95,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,135.72 : 174,068.66 = 69,549.12 : x
  2. Step 2: Convert to fraction form
    126,135.72/174,068.66 = 69,549.12/x
  3. Step 3: Cross multiply
    126,135.72x = 174,068.66 × 69,549.12
  4. Step 4: Simplify right side
    126,135.72x = 12,106,322,122.58
  5. Step 5: Solve for x
    x = 12,106,322,122.58/126,135.72
  6. Step 6: Final answer
    x = 95,978.54

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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.