Home / 205,211.59-283,196.77-128,733.91

Finding the Fourth Proportional to 205,211.59, 283,196.77 and 128,733.91

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Solution

The fourth proportional to 205,211.59, 283,196.77 and 128,733.91 is: 177,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,211.59 : 283,196.77 = 128,733.91 : x
  2. Step 2: Convert to fraction form
    205,211.59/283,196.77 = 128,733.91/x
  3. Step 3: Cross multiply
    205,211.59x = 283,196.77 × 128,733.91
  4. Step 4: Simplify right side
    205,211.59x = 36,457,026,471.64
  5. Step 5: Solve for x
    x = 36,457,026,471.64/205,211.59
  6. Step 6: Final answer
    x = 177,655.79

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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.