Home / 101,068.07-139,474.60-55,747.28

Finding the Fourth Proportional to 101,068.07, 139,474.60 and 55,747.28

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Solution

The fourth proportional to 101,068.07, 139,474.60 and 55,747.28 is: 76,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,068.07 : 139,474.60 = 55,747.28 : x
  2. Step 2: Convert to fraction form
    101,068.07/139,474.60 = 55,747.28/x
  3. Step 3: Cross multiply
    101,068.07x = 139,474.60 × 55,747.28
  4. Step 4: Simplify right side
    101,068.07x = 7,775,329,788.41
  5. Step 5: Solve for x
    x = 7,775,329,788.41/101,068.07
  6. Step 6: Final answer
    x = 76,931.61

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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.