Home / 155,462.06-231,980.64-138,706.94

Finding the Fourth Proportional to 155,462.06, 231,980.64 and 138,706.94

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Solution

The fourth proportional to 155,462.06, 231,980.64 and 138,706.94 is: 206,978.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,462.06 : 231,980.64 = 138,706.94 : x
  2. Step 2: Convert to fraction form
    155,462.06/231,980.64 = 138,706.94/x
  3. Step 3: Cross multiply
    155,462.06x = 231,980.64 × 138,706.94
  4. Step 4: Simplify right side
    155,462.06x = 32,177,324,713.64
  5. Step 5: Solve for x
    x = 32,177,324,713.64/155,462.06
  6. Step 6: Final answer
    x = 206,978.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.