Home / 143,351.52-197,810.88-79,683.12

Finding the Fourth Proportional to 143,351.52, 197,810.88 and 79,683.12

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Solution

The fourth proportional to 143,351.52, 197,810.88 and 79,683.12 is: 109,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,351.52 : 197,810.88 = 79,683.12 : x
  2. Step 2: Convert to fraction form
    143,351.52/197,810.88 = 79,683.12/x
  3. Step 3: Cross multiply
    143,351.52x = 197,810.88 × 79,683.12
  4. Step 4: Simplify right side
    143,351.52x = 15,762,188,088.35
  5. Step 5: Solve for x
    x = 15,762,188,088.35/143,351.52
  6. Step 6: Final answer
    x = 109,954.80

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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.