Home / 144,516.16-199,430.82-79,985.54

Finding the Fourth Proportional to 144,516.16, 199,430.82 and 79,985.54

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Solution

The fourth proportional to 144,516.16, 199,430.82 and 79,985.54 is: 110,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,516.16 : 199,430.82 = 79,985.54 : x
  2. Step 2: Convert to fraction form
    144,516.16/199,430.82 = 79,985.54/x
  3. Step 3: Cross multiply
    144,516.16x = 199,430.82 × 79,985.54
  4. Step 4: Simplify right side
    144,516.16x = 15,951,581,600.05
  5. Step 5: Solve for x
    x = 15,951,581,600.05/144,516.16
  6. Step 6: Final answer
    x = 110,379.22

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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.