Home / 143,827.50-198,482.86-80,169.32

Finding the Fourth Proportional to 143,827.50, 198,482.86 and 80,169.32

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Solution

The fourth proportional to 143,827.50, 198,482.86 and 80,169.32 is: 110,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,827.50 : 198,482.86 = 80,169.32 : x
  2. Step 2: Convert to fraction form
    143,827.50/198,482.86 = 80,169.32/x
  3. Step 3: Cross multiply
    143,827.50x = 198,482.86 × 80,169.32
  4. Step 4: Simplify right side
    143,827.50x = 15,912,235,917.86
  5. Step 5: Solve for x
    x = 15,912,235,917.86/143,827.50
  6. Step 6: Final answer
    x = 110,634.17

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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.