Home / 143,559.32-198,111.66-79,895.60

Finding the Fourth Proportional to 143,559.32, 198,111.66 and 79,895.60

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Solution

The fourth proportional to 143,559.32, 198,111.66 and 79,895.60 is: 110,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,559.32 : 198,111.66 = 79,895.60 : x
  2. Step 2: Convert to fraction form
    143,559.32/198,111.66 = 79,895.60/x
  3. Step 3: Cross multiply
    143,559.32x = 198,111.66 × 79,895.60
  4. Step 4: Simplify right side
    143,559.32x = 15,828,249,942.70
  5. Step 5: Solve for x
    x = 15,828,249,942.70/143,559.32
  6. Step 6: Final answer
    x = 110,255.82

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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.