Home / 109,551.49-151,187.97-61,787.41

Finding the Fourth Proportional to 109,551.49, 151,187.97 and 61,787.41

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Solution

The fourth proportional to 109,551.49, 151,187.97 and 61,787.41 is: 85,270.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,551.49 : 151,187.97 = 61,787.41 : x
  2. Step 2: Convert to fraction form
    109,551.49/151,187.97 = 61,787.41/x
  3. Step 3: Cross multiply
    109,551.49x = 151,187.97 × 61,787.41
  4. Step 4: Simplify right side
    109,551.49x = 9,341,513,089.46
  5. Step 5: Solve for x
    x = 9,341,513,089.46/109,551.49
  6. Step 6: Final answer
    x = 85,270.53

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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.