Home / 109,370.40-164,054.16-75,603.84

Finding the Fourth Proportional to 109,370.40, 164,054.16 and 75,603.84

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Solution

The fourth proportional to 109,370.40, 164,054.16 and 75,603.84 is: 113,404.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,370.40 : 164,054.16 = 75,603.84 : x
  2. Step 2: Convert to fraction form
    109,370.40/164,054.16 = 75,603.84/x
  3. Step 3: Cross multiply
    109,370.40x = 164,054.16 × 75,603.84
  4. Step 4: Simplify right side
    109,370.40x = 12,403,124,463.97
  5. Step 5: Solve for x
    x = 12,403,124,463.97/109,370.40
  6. Step 6: Final answer
    x = 113,404.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.