Home / 143,578.68-198,192.06-123,354.60

Finding the Fourth Proportional to 143,578.68, 198,192.06 and 123,354.60

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Solution

The fourth proportional to 143,578.68, 198,192.06 and 123,354.60 is: 170,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,578.68 : 198,192.06 = 123,354.60 : x
  2. Step 2: Convert to fraction form
    143,578.68/198,192.06 = 123,354.60/x
  3. Step 3: Cross multiply
    143,578.68x = 198,192.06 × 123,354.60
  4. Step 4: Simplify right side
    143,578.68x = 24,447,902,284.48
  5. Step 5: Solve for x
    x = 24,447,902,284.48/143,578.68
  6. Step 6: Final answer
    x = 170,275.30

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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.