Home / 129,830.62-179,174.55-73,221.34

Finding the Fourth Proportional to 129,830.62, 179,174.55 and 73,221.34

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Solution

The fourth proportional to 129,830.62, 179,174.55 and 73,221.34 is: 101,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830.62 : 179,174.55 = 73,221.34 : x
  2. Step 2: Convert to fraction form
    129,830.62/179,174.55 = 73,221.34/x
  3. Step 3: Cross multiply
    129,830.62x = 179,174.55 × 73,221.34
  4. Step 4: Simplify right side
    129,830.62x = 13,119,400,644.90
  5. Step 5: Solve for x
    x = 13,119,400,644.90/129,830.62
  6. Step 6: Final answer
    x = 101,050.13

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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.