Home / 143,354.02-197,814.33-79,685.62

Finding the Fourth Proportional to 143,354.02, 197,814.33 and 79,685.62

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Solution

The fourth proportional to 143,354.02, 197,814.33 and 79,685.62 is: 109,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,354.02 : 197,814.33 = 79,685.62 : x
  2. Step 2: Convert to fraction form
    143,354.02/197,814.33 = 79,685.62/x
  3. Step 3: Cross multiply
    143,354.02x = 197,814.33 × 79,685.62
  4. Step 4: Simplify right side
    143,354.02x = 15,762,957,530.93
  5. Step 5: Solve for x
    x = 15,762,957,530.93/143,354.02
  6. Step 6: Final answer
    x = 109,958.25

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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.