Home / 99,109.07-136,770.60-53,787.06

Finding the Fourth Proportional to 99,109.07, 136,770.60 and 53,787.06

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Solution

The fourth proportional to 99,109.07, 136,770.60 and 53,787.06 is: 74,226.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,109.07 : 136,770.60 = 53,787.06 : x
  2. Step 2: Convert to fraction form
    99,109.07/136,770.60 = 53,787.06/x
  3. Step 3: Cross multiply
    99,109.07x = 136,770.60 × 53,787.06
  4. Step 4: Simplify right side
    99,109.07x = 7,356,487,784.58
  5. Step 5: Solve for x
    x = 7,356,487,784.58/99,109.07
  6. Step 6: Final answer
    x = 74,226.18

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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.