Home / 143,525.58-198,056.25-79,861.74

Finding the Fourth Proportional to 143,525.58, 198,056.25 and 79,861.74

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Solution

The fourth proportional to 143,525.58, 198,056.25 and 79,861.74 is: 110,204.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,525.58 : 198,056.25 = 79,861.74 : x
  2. Step 2: Convert to fraction form
    143,525.58/198,056.25 = 79,861.74/x
  3. Step 3: Cross multiply
    143,525.58x = 198,056.25 × 79,861.74
  4. Step 4: Simplify right side
    143,525.58x = 15,817,116,742.88
  5. Step 5: Solve for x
    x = 15,817,116,742.88/143,525.58
  6. Step 6: Final answer
    x = 110,204.17

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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.