Home / 129,763.60-179,073.48-73,174.58

Finding the Fourth Proportional to 129,763.60, 179,073.48 and 73,174.58

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Solution

The fourth proportional to 129,763.60, 179,073.48 and 73,174.58 is: 100,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,763.60 : 179,073.48 = 73,174.58 : x
  2. Step 2: Convert to fraction form
    129,763.60/179,073.48 = 73,174.58/x
  3. Step 3: Cross multiply
    129,763.60x = 179,073.48 × 73,174.58
  4. Step 4: Simplify right side
    129,763.60x = 13,103,626,688.14
  5. Step 5: Solve for x
    x = 13,103,626,688.14/129,763.60
  6. Step 6: Final answer
    x = 100,980.76

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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.