Home / 101,106.36-139,526.38-55,787.16

Finding the Fourth Proportional to 101,106.36, 139,526.38 and 55,787.16

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Solution

The fourth proportional to 101,106.36, 139,526.38 and 55,787.16 is: 76,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,106.36 : 139,526.38 = 55,787.16 : x
  2. Step 2: Convert to fraction form
    101,106.36/139,526.38 = 55,787.16/x
  3. Step 3: Cross multiply
    101,106.36x = 139,526.38 × 55,787.16
  4. Step 4: Simplify right side
    101,106.36x = 7,783,780,485.28
  5. Step 5: Solve for x
    x = 7,783,780,485.28/101,106.36
  6. Step 6: Final answer
    x = 76,986.06

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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.