Home / 143,986.80-198,525.26-118,403.76

Finding the Fourth Proportional to 143,986.80, 198,525.26 and 118,403.76

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Solution

The fourth proportional to 143,986.80, 198,525.26 and 118,403.76 is: 163,252.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,986.80 : 198,525.26 = 118,403.76 : x
  2. Step 2: Convert to fraction form
    143,986.80/198,525.26 = 118,403.76/x
  3. Step 3: Cross multiply
    143,986.80x = 198,525.26 × 118,403.76
  4. Step 4: Simplify right side
    143,986.80x = 23,506,137,238.98
  5. Step 5: Solve for x
    x = 23,506,137,238.98/143,986.80
  6. Step 6: Final answer
    x = 163,252.03

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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.