Home / 143,271.57-197,720.96-79,609.22

Finding the Fourth Proportional to 143,271.57, 197,720.96 and 79,609.22

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Solution

The fourth proportional to 143,271.57, 197,720.96 and 79,609.22 is: 109,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271.57 : 197,720.96 = 79,609.22 : x
  2. Step 2: Convert to fraction form
    143,271.57/197,720.96 = 79,609.22/x
  3. Step 3: Cross multiply
    143,271.57x = 197,720.96 × 79,609.22
  4. Step 4: Simplify right side
    143,271.57x = 15,740,411,403.25
  5. Step 5: Solve for x
    x = 15,740,411,403.25/143,271.57
  6. Step 6: Final answer
    x = 109,864.16

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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.