Home / 143,408.04-197,903.26-79,744.46

Finding the Fourth Proportional to 143,408.04, 197,903.26 and 79,744.46

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Solution

The fourth proportional to 143,408.04, 197,903.26 and 79,744.46 is: 110,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,408.04 : 197,903.26 = 79,744.46 : x
  2. Step 2: Convert to fraction form
    143,408.04/197,903.26 = 79,744.46/x
  3. Step 3: Cross multiply
    143,408.04x = 197,903.26 × 79,744.46
  4. Step 4: Simplify right side
    143,408.04x = 15,781,688,600.94
  5. Step 5: Solve for x
    x = 15,781,688,600.94/143,408.04
  6. Step 6: Final answer
    x = 110,047.45

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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.