Home / 101,106.49-139,526.55-55,787.29

Finding the Fourth Proportional to 101,106.49, 139,526.55 and 55,787.29

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Solution

The fourth proportional to 101,106.49, 139,526.55 and 55,787.29 is: 76,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,106.49 : 139,526.55 = 55,787.29 : x
  2. Step 2: Convert to fraction form
    101,106.49/139,526.55 = 55,787.29/x
  3. Step 3: Cross multiply
    101,106.49x = 139,526.55 × 55,787.29
  4. Step 4: Simplify right side
    101,106.49x = 7,783,807,130.98
  5. Step 5: Solve for x
    x = 7,783,807,130.98/101,106.49
  6. Step 6: Final answer
    x = 76,986.23

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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.