Home / 129,571.45-178,747.46-75,823.19

Finding the Fourth Proportional to 129,571.45, 178,747.46 and 75,823.19

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Solution

The fourth proportional to 129,571.45, 178,747.46 and 75,823.19 is: 104,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,571.45 : 178,747.46 = 75,823.19 : x
  2. Step 2: Convert to fraction form
    129,571.45/178,747.46 = 75,823.19/x
  3. Step 3: Cross multiply
    129,571.45x = 178,747.46 × 75,823.19
  4. Step 4: Simplify right side
    129,571.45x = 13,553,202,303.38
  5. Step 5: Solve for x
    x = 13,553,202,303.38/129,571.45
  6. Step 6: Final answer
    x = 104,600.22

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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.