Home / 143,214.40-197,634.90-79,553.80

Finding the Fourth Proportional to 143,214.40, 197,634.90 and 79,553.80

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Solution

The fourth proportional to 143,214.40, 197,634.90 and 79,553.80 is: 109,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,214.40 : 197,634.90 = 79,553.80 : x
  2. Step 2: Convert to fraction form
    143,214.40/197,634.90 = 79,553.80/x
  3. Step 3: Cross multiply
    143,214.40x = 197,634.90 × 79,553.80
  4. Step 4: Simplify right side
    143,214.40x = 15,722,607,307.62
  5. Step 5: Solve for x
    x = 15,722,607,307.62/143,214.40
  6. Step 6: Final answer
    x = 109,783.70

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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.