Home / 143,125.61-197,504.20-79,463.39

Finding the Fourth Proportional to 143,125.61, 197,504.20 and 79,463.39

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Solution

The fourth proportional to 143,125.61, 197,504.20 and 79,463.39 is: 109,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,125.61 : 197,504.20 = 79,463.39 : x
  2. Step 2: Convert to fraction form
    143,125.61/197,504.20 = 79,463.39/x
  3. Step 3: Cross multiply
    143,125.61x = 197,504.20 × 79,463.39
  4. Step 4: Simplify right side
    143,125.61x = 15,694,353,271.24
  5. Step 5: Solve for x
    x = 15,694,353,271.24/143,125.61
  6. Step 6: Final answer
    x = 109,654.40

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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.