Home / 109,428.26-151,022.60-64,144.28

Finding the Fourth Proportional to 109,428.26, 151,022.60 and 64,144.28

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Solution

The fourth proportional to 109,428.26, 151,022.60 and 64,144.28 is: 88,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,428.26 : 151,022.60 = 64,144.28 : x
  2. Step 2: Convert to fraction form
    109,428.26/151,022.60 = 64,144.28/x
  3. Step 3: Cross multiply
    109,428.26x = 151,022.60 × 64,144.28
  4. Step 4: Simplify right side
    109,428.26x = 9,687,235,940.73
  5. Step 5: Solve for x
    x = 9,687,235,940.73/109,428.26
  6. Step 6: Final answer
    x = 88,525.91

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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.