Home / 149,238.05-205,915.16-125,136.50

Finding the Fourth Proportional to 149,238.05, 205,915.16 and 125,136.50

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Solution

The fourth proportional to 149,238.05, 205,915.16 and 125,136.50 is: 172,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,238.05 : 205,915.16 = 125,136.50 : x
  2. Step 2: Convert to fraction form
    149,238.05/205,915.16 = 125,136.50/x
  3. Step 3: Cross multiply
    149,238.05x = 205,915.16 × 125,136.50
  4. Step 4: Simplify right side
    149,238.05x = 25,767,501,702.61
  5. Step 5: Solve for x
    x = 25,767,501,702.61/149,238.05
  6. Step 6: Final answer
    x = 172,660.41

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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.