Home / 124,947.84-187,551.36-83,683.20

Finding the Fourth Proportional to 124,947.84, 187,551.36 and 83,683.20

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Solution

The fourth proportional to 124,947.84, 187,551.36 and 83,683.20 is: 125,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,947.84 : 187,551.36 = 83,683.20 : x
  2. Step 2: Convert to fraction form
    124,947.84/187,551.36 = 83,683.20/x
  3. Step 3: Cross multiply
    124,947.84x = 187,551.36 × 83,683.20
  4. Step 4: Simplify right side
    124,947.84x = 15,694,897,969.15
  5. Step 5: Solve for x
    x = 15,694,897,969.15/124,947.84
  6. Step 6: Final answer
    x = 125,611.60

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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.