Home / 143,134.18-197,521.41-79,470.34

Finding the Fourth Proportional to 143,134.18, 197,521.41 and 79,470.34

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Solution

The fourth proportional to 143,134.18, 197,521.41 and 79,470.34 is: 109,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,134.18 : 197,521.41 = 79,470.34 : x
  2. Step 2: Convert to fraction form
    143,134.18/197,521.41 = 79,470.34/x
  3. Step 3: Cross multiply
    143,134.18x = 197,521.41 × 79,470.34
  4. Step 4: Simplify right side
    143,134.18x = 15,697,093,609.98
  5. Step 5: Solve for x
    x = 15,697,093,609.98/143,134.18
  6. Step 6: Final answer
    x = 109,666.98

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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.