Home / 143,430.22-197,918.55-79,757.74

Finding the Fourth Proportional to 143,430.22, 197,918.55 and 79,757.74

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Solution

The fourth proportional to 143,430.22, 197,918.55 and 79,757.74 is: 110,057.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,430.22 : 197,918.55 = 79,757.74 : x
  2. Step 2: Convert to fraction form
    143,430.22/197,918.55 = 79,757.74/x
  3. Step 3: Cross multiply
    143,430.22x = 197,918.55 × 79,757.74
  4. Step 4: Simplify right side
    143,430.22x = 15,785,536,252.08
  5. Step 5: Solve for x
    x = 15,785,536,252.08/143,430.22
  6. Step 6: Final answer
    x = 110,057.25

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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.