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Finding the Fourth Proportional to 130,330.94, 179,873.48 and 72,992.04

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Solution

The fourth proportional to 130,330.94, 179,873.48 and 72,992.04 is: 100,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,330.94 : 179,873.48 = 72,992.04 : x
  2. Step 2: Convert to fraction form
    130,330.94/179,873.48 = 72,992.04/x
  3. Step 3: Cross multiply
    130,330.94x = 179,873.48 × 72,992.04
  4. Step 4: Simplify right side
    130,330.94x = 13,129,331,882.14
  5. Step 5: Solve for x
    x = 13,129,331,882.14/130,330.94
  6. Step 6: Final answer
    x = 100,738.42

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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.