Home / 143,293.62-197,743.77-79,630.05

Finding the Fourth Proportional to 143,293.62, 197,743.77 and 79,630.05

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Solution

The fourth proportional to 143,293.62, 197,743.77 and 79,630.05 is: 109,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,293.62 : 197,743.77 = 79,630.05 : x
  2. Step 2: Convert to fraction form
    143,293.62/197,743.77 = 79,630.05/x
  3. Step 3: Cross multiply
    143,293.62x = 197,743.77 × 79,630.05
  4. Step 4: Simplify right side
    143,293.62x = 15,746,346,292.29
  5. Step 5: Solve for x
    x = 15,746,346,292.29/143,293.62
  6. Step 6: Final answer
    x = 109,888.68

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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.