Home / 195,931.26-270,441-115,405.20

Finding the Fourth Proportional to 195,931.26, 270,441 and 115,405.20

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Solution

The fourth proportional to 195,931.26, 270,441 and 115,405.20 is: 159,292.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,931.26 : 270,441 = 115,405.20 : x
  2. Step 2: Convert to fraction form
    195,931.26/270,441 = 115,405.20/x
  3. Step 3: Cross multiply
    195,931.26x = 270,441 × 115,405.20
  4. Step 4: Simplify right side
    195,931.26x = 31,210,297,693.20
  5. Step 5: Solve for x
    x = 31,210,297,693.20/195,931.26
  6. Step 6: Final answer
    x = 159,292.08

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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.