Home / 101,126.84-139,548.75-55,805.18

Finding the Fourth Proportional to 101,126.84, 139,548.75 and 55,805.18

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Solution

The fourth proportional to 101,126.84, 139,548.75 and 55,805.18 is: 77,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,126.84 : 139,548.75 = 55,805.18 : x
  2. Step 2: Convert to fraction form
    101,126.84/139,548.75 = 55,805.18/x
  3. Step 3: Cross multiply
    101,126.84x = 139,548.75 × 55,805.18
  4. Step 4: Simplify right side
    101,126.84x = 7,787,543,112.53
  5. Step 5: Solve for x
    x = 7,787,543,112.53/101,126.84
  6. Step 6: Final answer
    x = 77,007.68

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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.