Home / 129,898.08-179,262.72-73,310.40

Finding the Fourth Proportional to 129,898.08, 179,262.72 and 73,310.40

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Solution

The fourth proportional to 129,898.08, 179,262.72 and 73,310.40 is: 101,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,898.08 : 179,262.72 = 73,310.40 : x
  2. Step 2: Convert to fraction form
    129,898.08/179,262.72 = 73,310.40/x
  3. Step 3: Cross multiply
    129,898.08x = 179,262.72 × 73,310.40
  4. Step 4: Simplify right side
    129,898.08x = 13,141,821,708.29
  5. Step 5: Solve for x
    x = 13,141,821,708.29/129,898.08
  6. Step 6: Final answer
    x = 101,170.25

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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.