Home / 143,010.56-197,354.58-79,348.82

Finding the Fourth Proportional to 143,010.56, 197,354.58 and 79,348.82

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Solution

The fourth proportional to 143,010.56, 197,354.58 and 79,348.82 is: 109,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,010.56 : 197,354.58 = 79,348.82 : x
  2. Step 2: Convert to fraction form
    143,010.56/197,354.58 = 79,348.82/x
  3. Step 3: Cross multiply
    143,010.56x = 197,354.58 × 79,348.82
  4. Step 4: Simplify right side
    143,010.56x = 15,659,851,760.26
  5. Step 5: Solve for x
    x = 15,659,851,760.26/143,010.56
  6. Step 6: Final answer
    x = 109,501.36

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1.5x scale

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.