Home / 97,985.76-146,862-68,242.56

Finding the Fourth Proportional to 97,985.76, 146,862 and 68,242.56

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Solution

The fourth proportional to 97,985.76, 146,862 and 68,242.56 is: 102,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,985.76 : 146,862 = 68,242.56 : x
  2. Step 2: Convert to fraction form
    97,985.76/146,862 = 68,242.56/x
  3. Step 3: Cross multiply
    97,985.76x = 146,862 × 68,242.56
  4. Step 4: Simplify right side
    97,985.76x = 10,022,238,846.72
  5. Step 5: Solve for x
    x = 10,022,238,846.72/97,985.76
  6. Step 6: Final answer
    x = 102,282.61

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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.