Home / 101,010.30-139,393.62-55,688.11

Finding the Fourth Proportional to 101,010.30, 139,393.62 and 55,688.11

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Solution

The fourth proportional to 101,010.30, 139,393.62 and 55,688.11 is: 76,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,010.30 : 139,393.62 = 55,688.11 : x
  2. Step 2: Convert to fraction form
    101,010.30/139,393.62 = 55,688.11/x
  3. Step 3: Cross multiply
    101,010.30x = 139,393.62 × 55,688.11
  4. Step 4: Simplify right side
    101,010.30x = 7,762,567,243.86
  5. Step 5: Solve for x
    x = 7,762,567,243.86/101,010.30
  6. Step 6: Final answer
    x = 76,849.26

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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.