Home / 205,810.64-283,899.72-120,910.16

Finding the Fourth Proportional to 205,810.64, 283,899.72 and 120,910.16

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Solution

The fourth proportional to 205,810.64, 283,899.72 and 120,910.16 is: 166,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,810.64 : 283,899.72 = 120,910.16 : x
  2. Step 2: Convert to fraction form
    205,810.64/283,899.72 = 120,910.16/x
  3. Step 3: Cross multiply
    205,810.64x = 283,899.72 × 120,910.16
  4. Step 4: Simplify right side
    205,810.64x = 34,326,360,569.16
  5. Step 5: Solve for x
    x = 34,326,360,569.16/205,810.64
  6. Step 6: Final answer
    x = 166,786.13

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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.