Home / 113,086.21-169,370.95-53,963.40

Finding the Fourth Proportional to 113,086.21, 169,370.95 and 53,963.40

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Solution

The fourth proportional to 113,086.21, 169,370.95 and 53,963.40 is: 80,821.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,086.21 : 169,370.95 = 53,963.40 : x
  2. Step 2: Convert to fraction form
    113,086.21/169,370.95 = 53,963.40/x
  3. Step 3: Cross multiply
    113,086.21x = 169,370.95 × 53,963.40
  4. Step 4: Simplify right side
    113,086.21x = 9,139,831,476.38
  5. Step 5: Solve for x
    x = 9,139,831,476.38/113,086.21
  6. Step 6: Final answer
    x = 80,821.81

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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.