Home / 144,014.72-215,732.66-71,749.80

Finding the Fourth Proportional to 144,014.72, 215,732.66 and 71,749.80

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Solution

The fourth proportional to 144,014.72, 215,732.66 and 71,749.80 is: 107,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,014.72 : 215,732.66 = 71,749.80 : x
  2. Step 2: Convert to fraction form
    144,014.72/215,732.66 = 71,749.80/x
  3. Step 3: Cross multiply
    144,014.72x = 215,732.66 × 71,749.80
  4. Step 4: Simplify right side
    144,014.72x = 15,478,774,849.72
  5. Step 5: Solve for x
    x = 15,478,774,849.72/144,014.72
  6. Step 6: Final answer
    x = 107,480.51

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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.