Home / 151,129.75-208,559.06-83,145.27

Finding the Fourth Proportional to 151,129.75, 208,559.06 and 83,145.27

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Solution

The fourth proportional to 151,129.75, 208,559.06 and 83,145.27 is: 114,740.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,129.75 : 208,559.06 = 83,145.27 : x
  2. Step 2: Convert to fraction form
    151,129.75/208,559.06 = 83,145.27/x
  3. Step 3: Cross multiply
    151,129.75x = 208,559.06 × 83,145.27
  4. Step 4: Simplify right side
    151,129.75x = 17,340,699,354.65
  5. Step 5: Solve for x
    x = 17,340,699,354.65/151,129.75
  6. Step 6: Final answer
    x = 114,740.48

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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.