Home / 138,112.61-207,173.36-38,273.76

Finding the Fourth Proportional to 138,112.61, 207,173.36 and 38,273.76

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Solution

The fourth proportional to 138,112.61, 207,173.36 and 38,273.76 is: 57,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,112.61 : 207,173.36 = 38,273.76 : x
  2. Step 2: Convert to fraction form
    138,112.61/207,173.36 = 38,273.76/x
  3. Step 3: Cross multiply
    138,112.61x = 207,173.36 × 38,273.76
  4. Step 4: Simplify right side
    138,112.61x = 7,929,303,554.72
  5. Step 5: Solve for x
    x = 7,929,303,554.72/138,112.61
  6. Step 6: Final answer
    x = 57,411.87

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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.