Home / 127,723.54-191,242.69-71,403.25

Finding the Fourth Proportional to 127,723.54, 191,242.69 and 71,403.25

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Solution

The fourth proportional to 127,723.54, 191,242.69 and 71,403.25 is: 106,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,723.54 : 191,242.69 = 71,403.25 : x
  2. Step 2: Convert to fraction form
    127,723.54/191,242.69 = 71,403.25/x
  3. Step 3: Cross multiply
    127,723.54x = 191,242.69 × 71,403.25
  4. Step 4: Simplify right side
    127,723.54x = 13,655,349,604.74
  5. Step 5: Solve for x
    x = 13,655,349,604.74/127,723.54
  6. Step 6: Final answer
    x = 106,913.33

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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.