Home / 143,178.46-197,580.84-79,520.34

Finding the Fourth Proportional to 143,178.46, 197,580.84 and 79,520.34

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Solution

The fourth proportional to 143,178.46, 197,580.84 and 79,520.34 is: 109,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,178.46 : 197,580.84 = 79,520.34 : x
  2. Step 2: Convert to fraction form
    143,178.46/197,580.84 = 79,520.34/x
  3. Step 3: Cross multiply
    143,178.46x = 197,580.84 × 79,520.34
  4. Step 4: Simplify right side
    143,178.46x = 15,711,695,574.29
  5. Step 5: Solve for x
    x = 15,711,695,574.29/143,178.46
  6. Step 6: Final answer
    x = 109,735.05

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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.