Home / 107,418.40-148,101.14-76,828.34

Finding the Fourth Proportional to 107,418.40, 148,101.14 and 76,828.34

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Solution

The fourth proportional to 107,418.40, 148,101.14 and 76,828.34 is: 105,925.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,418.40 : 148,101.14 = 76,828.34 : x
  2. Step 2: Convert to fraction form
    107,418.40/148,101.14 = 76,828.34/x
  3. Step 3: Cross multiply
    107,418.40x = 148,101.14 × 76,828.34
  4. Step 4: Simplify right side
    107,418.40x = 11,378,364,738.31
  5. Step 5: Solve for x
    x = 11,378,364,738.31/107,418.40
  6. Step 6: Final answer
    x = 105,925.66

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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.