Home / 205,455.77-283,557.12-118,239.11

Finding the Fourth Proportional to 205,455.77, 283,557.12 and 118,239.11

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Solution

The fourth proportional to 205,455.77, 283,557.12 and 118,239.11 is: 163,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,455.77 : 283,557.12 = 118,239.11 : x
  2. Step 2: Convert to fraction form
    205,455.77/283,557.12 = 118,239.11/x
  3. Step 3: Cross multiply
    205,455.77x = 283,557.12 × 118,239.11
  4. Step 4: Simplify right side
    205,455.77x = 33,527,541,502.96
  5. Step 5: Solve for x
    x = 33,527,541,502.96/205,455.77
  6. Step 6: Final answer
    x = 163,186.18

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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.