Home / 231,150.12-318,993.48-130,548.12

Finding the Fourth Proportional to 231,150.12, 318,993.48 and 130,548.12

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Solution

The fourth proportional to 231,150.12, 318,993.48 and 130,548.12 is: 180,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,150.12 : 318,993.48 = 130,548.12 : x
  2. Step 2: Convert to fraction form
    231,150.12/318,993.48 = 130,548.12/x
  3. Step 3: Cross multiply
    231,150.12x = 318,993.48 × 130,548.12
  4. Step 4: Simplify right side
    231,150.12x = 41,643,999,106.26
  5. Step 5: Solve for x
    x = 41,643,999,106.26/231,150.12
  6. Step 6: Final answer
    x = 180,159.97

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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.