Home / 123,195.65-170,009.63-66,607.03

Finding the Fourth Proportional to 123,195.65, 170,009.63 and 66,607.03

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Solution

The fourth proportional to 123,195.65, 170,009.63 and 66,607.03 is: 91,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,195.65 : 170,009.63 = 66,607.03 : x
  2. Step 2: Convert to fraction form
    123,195.65/170,009.63 = 66,607.03/x
  3. Step 3: Cross multiply
    123,195.65x = 170,009.63 × 66,607.03
  4. Step 4: Simplify right side
    123,195.65x = 11,323,835,342.62
  5. Step 5: Solve for x
    x = 11,323,835,342.62/123,195.65
  6. Step 6: Final answer
    x = 91,917.49

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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.