Home / 129,999.34-179,399.10-73,414.36

Finding the Fourth Proportional to 129,999.34, 179,399.10 and 73,414.36

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Solution

The fourth proportional to 129,999.34, 179,399.10 and 73,414.36 is: 101,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,999.34 : 179,399.10 = 73,414.36 : x
  2. Step 2: Convert to fraction form
    129,999.34/179,399.10 = 73,414.36/x
  3. Step 3: Cross multiply
    129,999.34x = 179,399.10 × 73,414.36
  4. Step 4: Simplify right side
    129,999.34x = 13,170,470,111.08
  5. Step 5: Solve for x
    x = 13,170,470,111.08/129,999.34
  6. Step 6: Final answer
    x = 101,311.82

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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.