Home / 138,200.07-207,300.20-38,360.36

Finding the Fourth Proportional to 138,200.07, 207,300.20 and 38,360.36

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Solution

The fourth proportional to 138,200.07, 207,300.20 and 38,360.36 is: 57,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200.07 : 207,300.20 = 38,360.36 : x
  2. Step 2: Convert to fraction form
    138,200.07/207,300.20 = 38,360.36/x
  3. Step 3: Cross multiply
    138,200.07x = 207,300.20 × 38,360.36
  4. Step 4: Simplify right side
    138,200.07x = 7,952,110,300.07
  5. Step 5: Solve for x
    x = 7,952,110,300.07/138,200.07
  6. Step 6: Final answer
    x = 57,540.57

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1.5x scale

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.