Home / 121,580.00-181,996.30-103,643.86

Finding the Fourth Proportional to 121,580.00, 181,996.30 and 103,643.86

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Solution

The fourth proportional to 121,580.00, 181,996.30 and 103,643.86 is: 155,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,580.00 : 181,996.30 = 103,643.86 : x
  2. Step 2: Convert to fraction form
    121,580.00/181,996.30 = 103,643.86/x
  3. Step 3: Cross multiply
    121,580.00x = 181,996.30 × 103,643.86
  4. Step 4: Simplify right side
    121,580.00x = 18,862,797,609.52
  5. Step 5: Solve for x
    x = 18,862,797,609.52/121,580.00
  6. Step 6: Final answer
    x = 155,147.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.