Home / 107,664.12-148,757.72-77,389.16

Finding the Fourth Proportional to 107,664.12, 148,757.72 and 77,389.16

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Solution

The fourth proportional to 107,664.12, 148,757.72 and 77,389.16 is: 106,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,664.12 : 148,757.72 = 77,389.16 : x
  2. Step 2: Convert to fraction form
    107,664.12/148,757.72 = 77,389.16/x
  3. Step 3: Cross multiply
    107,664.12x = 148,757.72 × 77,389.16
  4. Step 4: Simplify right side
    107,664.12x = 11,512,233,863.58
  5. Step 5: Solve for x
    x = 11,512,233,863.58/107,664.12
  6. Step 6: Final answer
    x = 106,927.30

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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.