Home / 143,300.48-197,754.75-79,638.26

Finding the Fourth Proportional to 143,300.48, 197,754.75 and 79,638.26

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Solution

The fourth proportional to 143,300.48, 197,754.75 and 79,638.26 is: 109,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,300.48 : 197,754.75 = 79,638.26 : x
  2. Step 2: Convert to fraction form
    143,300.48/197,754.75 = 79,638.26/x
  3. Step 3: Cross multiply
    143,300.48x = 197,754.75 × 79,638.26
  4. Step 4: Simplify right side
    143,300.48x = 15,748,843,207.96
  5. Step 5: Solve for x
    x = 15,748,843,207.96/143,300.48
  6. Step 6: Final answer
    x = 109,900.84

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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.