Home / 143,346.31-197,818.14-79,683.55

Finding the Fourth Proportional to 143,346.31, 197,818.14 and 79,683.55

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Solution

The fourth proportional to 143,346.31, 197,818.14 and 79,683.55 is: 109,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,346.31 : 197,818.14 = 79,683.55 : x
  2. Step 2: Convert to fraction form
    143,346.31/197,818.14 = 79,683.55/x
  3. Step 3: Cross multiply
    143,346.31x = 197,818.14 × 79,683.55
  4. Step 4: Simplify right side
    143,346.31x = 15,762,851,649.60
  5. Step 5: Solve for x
    x = 15,762,851,649.60/143,346.31
  6. Step 6: Final answer
    x = 109,963.43

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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.