Home / 130,329.88-179,813.41-72,960.75

Finding the Fourth Proportional to 130,329.88, 179,813.41 and 72,960.75

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Solution

The fourth proportional to 130,329.88, 179,813.41 and 72,960.75 is: 100,662.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,329.88 : 179,813.41 = 72,960.75 : x
  2. Step 2: Convert to fraction form
    130,329.88/179,813.41 = 72,960.75/x
  3. Step 3: Cross multiply
    130,329.88x = 179,813.41 × 72,960.75
  4. Step 4: Simplify right side
    130,329.88x = 13,119,321,253.66
  5. Step 5: Solve for x
    x = 13,119,321,253.66/130,329.88
  6. Step 6: Final answer
    x = 100,662.42

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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.