Home / 158,720.50-238,080.75-47,912.50

Finding the Fourth Proportional to 158,720.50, 238,080.75 and 47,912.50

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Solution

The fourth proportional to 158,720.50, 238,080.75 and 47,912.50 is: 71,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,720.50 : 238,080.75 = 47,912.50 : x
  2. Step 2: Convert to fraction form
    158,720.50/238,080.75 = 47,912.50/x
  3. Step 3: Cross multiply
    158,720.50x = 238,080.75 × 47,912.50
  4. Step 4: Simplify right side
    158,720.50x = 11,407,043,934.38
  5. Step 5: Solve for x
    x = 11,407,043,934.38/158,720.50
  6. Step 6: Final answer
    x = 71,868.75

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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.