Home / 143,051.58-197,390.99-85,677.46

Finding the Fourth Proportional to 143,051.58, 197,390.99 and 85,677.46

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Solution

The fourth proportional to 143,051.58, 197,390.99 and 85,677.46 is: 118,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,051.58 : 197,390.99 = 85,677.46 : x
  2. Step 2: Convert to fraction form
    143,051.58/197,390.99 = 85,677.46/x
  3. Step 3: Cross multiply
    143,051.58x = 197,390.99 × 85,677.46
  4. Step 4: Simplify right side
    143,051.58x = 16,911,958,370.80
  5. Step 5: Solve for x
    x = 16,911,958,370.80/143,051.58
  6. Step 6: Final answer
    x = 118,222.80

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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.