Home / 136,849.14-188,850.02-76,420.84

Finding the Fourth Proportional to 136,849.14, 188,850.02 and 76,420.84

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Solution

The fourth proportional to 136,849.14, 188,850.02 and 76,420.84 is: 105,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,849.14 : 188,850.02 = 76,420.84 : x
  2. Step 2: Convert to fraction form
    136,849.14/188,850.02 = 76,420.84/x
  3. Step 3: Cross multiply
    136,849.14x = 188,850.02 × 76,420.84
  4. Step 4: Simplify right side
    136,849.14x = 14,432,077,162.42
  5. Step 5: Solve for x
    x = 14,432,077,162.42/136,849.14
  6. Step 6: Final answer
    x = 105,459.76

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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.