Home / 107,858.06-149,113.13-80,953.86

Finding the Fourth Proportional to 107,858.06, 149,113.13 and 80,953.86

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Solution

The fourth proportional to 107,858.06, 149,113.13 and 80,953.86 is: 111,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,858.06 : 149,113.13 = 80,953.86 : x
  2. Step 2: Convert to fraction form
    107,858.06/149,113.13 = 80,953.86/x
  3. Step 3: Cross multiply
    107,858.06x = 149,113.13 × 80,953.86
  4. Step 4: Simplify right side
    107,858.06x = 12,071,283,086.41
  5. Step 5: Solve for x
    x = 12,071,283,086.41/107,858.06
  6. Step 6: Final answer
    x = 111,918.23

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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.