Home / 101,324.07-139,822.86-55,999.71

Finding the Fourth Proportional to 101,324.07, 139,822.86 and 55,999.71

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Solution

The fourth proportional to 101,324.07, 139,822.86 and 55,999.71 is: 77,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,324.07 : 139,822.86 = 55,999.71 : x
  2. Step 2: Convert to fraction form
    101,324.07/139,822.86 = 55,999.71/x
  3. Step 3: Cross multiply
    101,324.07x = 139,822.86 × 55,999.71
  4. Step 4: Simplify right side
    101,324.07x = 7,830,039,611.37
  5. Step 5: Solve for x
    x = 7,830,039,611.37/101,324.07
  6. Step 6: Final answer
    x = 77,277.19

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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.