Home / 153,028.05-211,174.49-85,043.31

Finding the Fourth Proportional to 153,028.05, 211,174.49 and 85,043.31

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Solution

The fourth proportional to 153,028.05, 211,174.49 and 85,043.31 is: 117,357.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,028.05 : 211,174.49 = 85,043.31 : x
  2. Step 2: Convert to fraction form
    153,028.05/211,174.49 = 85,043.31/x
  3. Step 3: Cross multiply
    153,028.05x = 211,174.49 × 85,043.31
  4. Step 4: Simplify right side
    153,028.05x = 17,958,977,617.16
  5. Step 5: Solve for x
    x = 17,958,977,617.16/153,028.05
  6. Step 6: Final answer
    x = 117,357.42

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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.