Home / 136,801.03-188,788.59-85,815.91

Finding the Fourth Proportional to 136,801.03, 188,788.59 and 85,815.91

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Solution

The fourth proportional to 136,801.03, 188,788.59 and 85,815.91 is: 118,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,801.03 : 188,788.59 = 85,815.91 : x
  2. Step 2: Convert to fraction form
    136,801.03/188,788.59 = 85,815.91/x
  3. Step 3: Cross multiply
    136,801.03x = 188,788.59 × 85,815.91
  4. Step 4: Simplify right side
    136,801.03x = 16,201,064,648.47
  5. Step 5: Solve for x
    x = 16,201,064,648.47/136,801.03
  6. Step 6: Final answer
    x = 118,427.94

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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.