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Finding the Fourth Proportional to 101,126.50, 139,554.46 and 55,804.47

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Solution

The fourth proportional to 101,126.50, 139,554.46 and 55,804.47 is: 77,010.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,126.50 : 139,554.46 = 55,804.47 : x
  2. Step 2: Convert to fraction form
    101,126.50/139,554.46 = 55,804.47/x
  3. Step 3: Cross multiply
    101,126.50x = 139,554.46 × 55,804.47
  4. Step 4: Simplify right side
    101,126.50x = 7,787,762,676.44
  5. Step 5: Solve for x
    x = 7,787,762,676.44/101,126.50
  6. Step 6: Final answer
    x = 77,010.11

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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.