Home / 205,656.73-283,741.71-115,000.45

Finding the Fourth Proportional to 205,656.73, 283,741.71 and 115,000.45

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Solution

The fourth proportional to 205,656.73, 283,741.71 and 115,000.45 is: 158,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,656.73 : 283,741.71 = 115,000.45 : x
  2. Step 2: Convert to fraction form
    205,656.73/283,741.71 = 115,000.45/x
  3. Step 3: Cross multiply
    205,656.73x = 283,741.71 × 115,000.45
  4. Step 4: Simplify right side
    205,656.73x = 32,630,424,333.77
  5. Step 5: Solve for x
    x = 32,630,424,333.77/205,656.73
  6. Step 6: Final answer
    x = 158,664.51

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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.