Home / 180,242.12-248,729.72-99,667.56

Finding the Fourth Proportional to 180,242.12, 248,729.72 and 99,667.56

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Solution

The fourth proportional to 180,242.12, 248,729.72 and 99,667.56 is: 137,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,242.12 : 248,729.72 = 99,667.56 : x
  2. Step 2: Convert to fraction form
    180,242.12/248,729.72 = 99,667.56/x
  3. Step 3: Cross multiply
    180,242.12x = 248,729.72 × 99,667.56
  4. Step 4: Simplify right side
    180,242.12x = 24,790,284,291.88
  5. Step 5: Solve for x
    x = 24,790,284,291.88/180,242.12
  6. Step 6: Final answer
    x = 137,538.80

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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.