Home / 142,975.92-197,330.43-79,334.22

Finding the Fourth Proportional to 142,975.92, 197,330.43 and 79,334.22

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Solution

The fourth proportional to 142,975.92, 197,330.43 and 79,334.22 is: 109,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,975.92 : 197,330.43 = 79,334.22 : x
  2. Step 2: Convert to fraction form
    142,975.92/197,330.43 = 79,334.22/x
  3. Step 3: Cross multiply
    142,975.92x = 197,330.43 × 79,334.22
  4. Step 4: Simplify right side
    142,975.92x = 15,655,056,337.55
  5. Step 5: Solve for x
    x = 15,655,056,337.55/142,975.92
  6. Step 6: Final answer
    x = 109,494.35

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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.