Home / 129,103.69-178,113.30-95,192.65

Finding the Fourth Proportional to 129,103.69, 178,113.30 and 95,192.65

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Solution

The fourth proportional to 129,103.69, 178,113.30 and 95,192.65 is: 131,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,103.69 : 178,113.30 = 95,192.65 : x
  2. Step 2: Convert to fraction form
    129,103.69/178,113.30 = 95,192.65/x
  3. Step 3: Cross multiply
    129,103.69x = 178,113.30 × 95,192.65
  4. Step 4: Simplify right side
    129,103.69x = 16,955,077,027.25
  5. Step 5: Solve for x
    x = 16,955,077,027.25/129,103.69
  6. Step 6: Final answer
    x = 131,329.14

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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.