Home / 134,832.70-202,186.47-78,688.97

Finding the Fourth Proportional to 134,832.70, 202,186.47 and 78,688.97

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Solution

The fourth proportional to 134,832.70, 202,186.47 and 78,688.97 is: 117,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,832.70 : 202,186.47 = 78,688.97 : x
  2. Step 2: Convert to fraction form
    134,832.70/202,186.47 = 78,688.97/x
  3. Step 3: Cross multiply
    134,832.70x = 202,186.47 × 78,688.97
  4. Step 4: Simplify right side
    134,832.70x = 15,909,844,061.30
  5. Step 5: Solve for x
    x = 15,909,844,061.30/134,832.70
  6. Step 6: Final answer
    x = 117,996.93

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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.