Home / 151,987.48-209,736.18-84,000.94

Finding the Fourth Proportional to 151,987.48, 209,736.18 and 84,000.94

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Solution

The fourth proportional to 151,987.48, 209,736.18 and 84,000.94 is: 115,917.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,987.48 : 209,736.18 = 84,000.94 : x
  2. Step 2: Convert to fraction form
    151,987.48/209,736.18 = 84,000.94/x
  3. Step 3: Cross multiply
    151,987.48x = 209,736.18 × 84,000.94
  4. Step 4: Simplify right side
    151,987.48x = 17,618,036,272.01
  5. Step 5: Solve for x
    x = 17,618,036,272.01/151,987.48
  6. Step 6: Final answer
    x = 115,917.68

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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.