Home / 101,214.02-139,672.54-55,891.15

Finding the Fourth Proportional to 101,214.02, 139,672.54 and 55,891.15

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Solution

The fourth proportional to 101,214.02, 139,672.54 and 55,891.15 is: 77,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,214.02 : 139,672.54 = 55,891.15 : x
  2. Step 2: Convert to fraction form
    101,214.02/139,672.54 = 55,891.15/x
  3. Step 3: Cross multiply
    101,214.02x = 139,672.54 × 55,891.15
  4. Step 4: Simplify right side
    101,214.02x = 7,806,458,884.02
  5. Step 5: Solve for x
    x = 7,806,458,884.02/101,214.02
  6. Step 6: Final answer
    x = 77,128.24

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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.