Home / 138,180.33-207,312.80-70,760.10

Finding the Fourth Proportional to 138,180.33, 207,312.80 and 70,760.10

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Solution

The fourth proportional to 138,180.33, 207,312.80 and 70,760.10 is: 106,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,180.33 : 207,312.80 = 70,760.10 : x
  2. Step 2: Convert to fraction form
    138,180.33/207,312.80 = 70,760.10/x
  3. Step 3: Cross multiply
    138,180.33x = 207,312.80 × 70,760.10
  4. Step 4: Simplify right side
    138,180.33x = 14,669,475,579.45
  5. Step 5: Solve for x
    x = 14,669,475,579.45/138,180.33
  6. Step 6: Final answer
    x = 106,161.82

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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.