Home / 143,633.08-198,210.13-79,969.51

Finding the Fourth Proportional to 143,633.08, 198,210.13 and 79,969.51

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Solution

The fourth proportional to 143,633.08, 198,210.13 and 79,969.51 is: 110,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,633.08 : 198,210.13 = 79,969.51 : x
  2. Step 2: Convert to fraction form
    143,633.08/198,210.13 = 79,969.51/x
  3. Step 3: Cross multiply
    143,633.08x = 198,210.13 × 79,969.51
  4. Step 4: Simplify right side
    143,633.08x = 15,850,766,973.14
  5. Step 5: Solve for x
    x = 15,850,766,973.14/143,633.08
  6. Step 6: Final answer
    x = 110,355.96

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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.