Home / 143,033.61-197,385.75-79,371.27

Finding the Fourth Proportional to 143,033.61, 197,385.75 and 79,371.27

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Solution

The fourth proportional to 143,033.61, 197,385.75 and 79,371.27 is: 109,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,033.61 : 197,385.75 = 79,371.27 : x
  2. Step 2: Convert to fraction form
    143,033.61/197,385.75 = 79,371.27/x
  3. Step 3: Cross multiply
    143,033.61x = 197,385.75 × 79,371.27
  4. Step 4: Simplify right side
    143,033.61x = 15,666,757,657.40
  5. Step 5: Solve for x
    x = 15,666,757,657.40/143,033.61
  6. Step 6: Final answer
    x = 109,532.00

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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.