Home / 129,945.92-179,315.36-73,362.88

Finding the Fourth Proportional to 129,945.92, 179,315.36 and 73,362.88

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Solution

The fourth proportional to 129,945.92, 179,315.36 and 73,362.88 is: 101,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,945.92 : 179,315.36 = 73,362.88 : x
  2. Step 2: Convert to fraction form
    129,945.92/179,315.36 = 73,362.88/x
  3. Step 3: Cross multiply
    129,945.92x = 179,315.36 × 73,362.88
  4. Step 4: Simplify right side
    129,945.92x = 13,155,091,237.84
  5. Step 5: Solve for x
    x = 13,155,091,237.84/129,945.92
  6. Step 6: Final answer
    x = 101,235.12

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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.