Home / 143,062.48-197,438.64-79,412.56

Finding the Fourth Proportional to 143,062.48, 197,438.64 and 79,412.56

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Solution

The fourth proportional to 143,062.48, 197,438.64 and 79,412.56 is: 109,596.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,062.48 : 197,438.64 = 79,412.56 : x
  2. Step 2: Convert to fraction form
    143,062.48/197,438.64 = 79,412.56/x
  3. Step 3: Cross multiply
    143,062.48x = 197,438.64 × 79,412.56
  4. Step 4: Simplify right side
    143,062.48x = 15,679,107,845.32
  5. Step 5: Solve for x
    x = 15,679,107,845.32/143,062.48
  6. Step 6: Final answer
    x = 109,596.23

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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.