Home / 101,010.36-139,388.76-55,688.34

Finding the Fourth Proportional to 101,010.36, 139,388.76 and 55,688.34

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Solution

The fourth proportional to 101,010.36, 139,388.76 and 55,688.34 is: 76,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,010.36 : 139,388.76 = 55,688.34 : x
  2. Step 2: Convert to fraction form
    101,010.36/139,388.76 = 55,688.34/x
  3. Step 3: Cross multiply
    101,010.36x = 139,388.76 × 55,688.34
  4. Step 4: Simplify right side
    101,010.36x = 7,762,328,659.06
  5. Step 5: Solve for x
    x = 7,762,328,659.06/101,010.36
  6. Step 6: Final answer
    x = 76,846.86

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1.5x scale

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.