Home / 99,131.40-136,801.41-53,809.35

Finding the Fourth Proportional to 99,131.40, 136,801.41 and 53,809.35

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Solution

The fourth proportional to 99,131.40, 136,801.41 and 53,809.35 is: 74,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,131.40 : 136,801.41 = 53,809.35 : x
  2. Step 2: Convert to fraction form
    99,131.40/136,801.41 = 53,809.35/x
  3. Step 3: Cross multiply
    99,131.40x = 136,801.41 × 53,809.35
  4. Step 4: Simplify right side
    99,131.40x = 7,361,194,951.18
  5. Step 5: Solve for x
    x = 7,361,194,951.18/99,131.40
  6. Step 6: Final answer
    x = 74,256.95

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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.