Home / 113,912.58-157,172.76-66,137.16

Finding the Fourth Proportional to 113,912.58, 157,172.76 and 66,137.16

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Solution

The fourth proportional to 113,912.58, 157,172.76 and 66,137.16 is: 91,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,912.58 : 157,172.76 = 66,137.16 : x
  2. Step 2: Convert to fraction form
    113,912.58/157,172.76 = 66,137.16/x
  3. Step 3: Cross multiply
    113,912.58x = 157,172.76 × 66,137.16
  4. Step 4: Simplify right side
    113,912.58x = 10,394,959,975.76
  5. Step 5: Solve for x
    x = 10,394,959,975.76/113,912.58
  6. Step 6: Final answer
    x = 91,253.84

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1.5x scale

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.