Home / 100,273.30-138,440.07-64,525.44

Finding the Fourth Proportional to 100,273.30, 138,440.07 and 64,525.44

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Solution

The fourth proportional to 100,273.30, 138,440.07 and 64,525.44 is: 89,085.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,273.30 : 138,440.07 = 64,525.44 : x
  2. Step 2: Convert to fraction form
    100,273.30/138,440.07 = 64,525.44/x
  3. Step 3: Cross multiply
    100,273.30x = 138,440.07 × 64,525.44
  4. Step 4: Simplify right side
    100,273.30x = 8,932,906,430.38
  5. Step 5: Solve for x
    x = 8,932,906,430.38/100,273.30
  6. Step 6: Final answer
    x = 89,085.59

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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.