Home / 127,155.66-175,419.99-76,825.50

Finding the Fourth Proportional to 127,155.66, 175,419.99 and 76,825.50

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Solution

The fourth proportional to 127,155.66, 175,419.99 and 76,825.50 is: 105,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,155.66 : 175,419.99 = 76,825.50 : x
  2. Step 2: Convert to fraction form
    127,155.66/175,419.99 = 76,825.50/x
  3. Step 3: Cross multiply
    127,155.66x = 175,419.99 × 76,825.50
  4. Step 4: Simplify right side
    127,155.66x = 13,476,728,441.75
  5. Step 5: Solve for x
    x = 13,476,728,441.75/127,155.66
  6. Step 6: Final answer
    x = 105,986.07

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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.