Home / 138,935.70-191,731.46-75,273.50

Finding the Fourth Proportional to 138,935.70, 191,731.46 and 75,273.50

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Solution

The fourth proportional to 138,935.70, 191,731.46 and 75,273.50 is: 103,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,935.70 : 191,731.46 = 75,273.50 : x
  2. Step 2: Convert to fraction form
    138,935.70/191,731.46 = 75,273.50/x
  3. Step 3: Cross multiply
    138,935.70x = 191,731.46 × 75,273.50
  4. Step 4: Simplify right side
    138,935.70x = 14,432,296,719.29
  5. Step 5: Solve for x
    x = 14,432,296,719.29/138,935.70
  6. Step 6: Final answer
    x = 103,877.53

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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.