Home / 129,763.50-179,084.57-73,185.81

Finding the Fourth Proportional to 129,763.50, 179,084.57 and 73,185.81

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Solution

The fourth proportional to 129,763.50, 179,084.57 and 73,185.81 is: 101,002.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,763.50 : 179,084.57 = 73,185.81 : x
  2. Step 2: Convert to fraction form
    129,763.50/179,084.57 = 73,185.81/x
  3. Step 3: Cross multiply
    129,763.50x = 179,084.57 × 73,185.81
  4. Step 4: Simplify right side
    129,763.50x = 13,106,448,948.02
  5. Step 5: Solve for x
    x = 13,106,448,948.02/129,763.50
  6. Step 6: Final answer
    x = 101,002.59

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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.