Home / 149,017.74-205,540.38-101,188.05

Finding the Fourth Proportional to 149,017.74, 205,540.38 and 101,188.05

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Solution

The fourth proportional to 149,017.74, 205,540.38 and 101,188.05 is: 139,568.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,017.74 : 205,540.38 = 101,188.05 : x
  2. Step 2: Convert to fraction form
    149,017.74/205,540.38 = 101,188.05/x
  3. Step 3: Cross multiply
    149,017.74x = 205,540.38 × 101,188.05
  4. Step 4: Simplify right side
    149,017.74x = 20,798,230,248.46
  5. Step 5: Solve for x
    x = 20,798,230,248.46/149,017.74
  6. Step 6: Final answer
    x = 139,568.82

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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.