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Finding the Fourth Proportional to 180,131.67, 248,452.79 and 126,428.67

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Solution

The fourth proportional to 180,131.67, 248,452.79 and 126,428.67 is: 174,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,131.67 : 248,452.79 = 126,428.67 : x
  2. Step 2: Convert to fraction form
    180,131.67/248,452.79 = 126,428.67/x
  3. Step 3: Cross multiply
    180,131.67x = 248,452.79 × 126,428.67
  4. Step 4: Simplify right side
    180,131.67x = 31,411,555,165.35
  5. Step 5: Solve for x
    x = 31,411,555,165.35/180,131.67
  6. Step 6: Final answer
    x = 174,381.08

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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.