Home / 143,200.08-197,617.92-79,543.80

Finding the Fourth Proportional to 143,200.08, 197,617.92 and 79,543.80

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Solution

The fourth proportional to 143,200.08, 197,617.92 and 79,543.80 is: 109,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,200.08 : 197,617.92 = 79,543.80 : x
  2. Step 2: Convert to fraction form
    143,200.08/197,617.92 = 79,543.80/x
  3. Step 3: Cross multiply
    143,200.08x = 197,617.92 × 79,543.80
  4. Step 4: Simplify right side
    143,200.08x = 15,719,280,304.90
  5. Step 5: Solve for x
    x = 15,719,280,304.90/143,200.08
  6. Step 6: Final answer
    x = 109,771.45

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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.