Home / 185,819.69-256,467.10-121,176.69

Finding the Fourth Proportional to 185,819.69, 256,467.10 and 121,176.69

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Solution

The fourth proportional to 185,819.69, 256,467.10 and 121,176.69 is: 167,247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,819.69 : 256,467.10 = 121,176.69 : x
  2. Step 2: Convert to fraction form
    185,819.69/256,467.10 = 121,176.69/x
  3. Step 3: Cross multiply
    185,819.69x = 256,467.10 × 121,176.69
  4. Step 4: Simplify right side
    185,819.69x = 31,077,834,574.84
  5. Step 5: Solve for x
    x = 31,077,834,574.84/185,819.69
  6. Step 6: Final answer
    x = 167,247.27

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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.