Home / 143,221.02-214,779.69-68,338.14

Finding the Fourth Proportional to 143,221.02, 214,779.69 and 68,338.14

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Solution

The fourth proportional to 143,221.02, 214,779.69 and 68,338.14 is: 102,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,221.02 : 214,779.69 = 68,338.14 : x
  2. Step 2: Convert to fraction form
    143,221.02/214,779.69 = 68,338.14/x
  3. Step 3: Cross multiply
    143,221.02x = 214,779.69 × 68,338.14
  4. Step 4: Simplify right side
    143,221.02x = 14,677,644,524.38
  5. Step 5: Solve for x
    x = 14,677,644,524.38/143,221.02
  6. Step 6: Final answer
    x = 102,482.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.