Home / 143,550.56-198,109.08-79,888.16

Finding the Fourth Proportional to 143,550.56, 198,109.08 and 79,888.16

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Solution

The fourth proportional to 143,550.56, 198,109.08 and 79,888.16 is: 110,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,550.56 : 198,109.08 = 79,888.16 : x
  2. Step 2: Convert to fraction form
    143,550.56/198,109.08 = 79,888.16/x
  3. Step 3: Cross multiply
    143,550.56x = 198,109.08 × 79,888.16
  4. Step 4: Simplify right side
    143,550.56x = 15,826,569,880.49
  5. Step 5: Solve for x
    x = 15,826,569,880.49/143,550.56
  6. Step 6: Final answer
    x = 110,250.84

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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.