Home / 149,168.26-205,854.48-81,187.93

Finding the Fourth Proportional to 149,168.26, 205,854.48 and 81,187.93

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Solution

The fourth proportional to 149,168.26, 205,854.48 and 81,187.93 is: 112,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,168.26 : 205,854.48 = 81,187.93 : x
  2. Step 2: Convert to fraction form
    149,168.26/205,854.48 = 81,187.93/x
  3. Step 3: Cross multiply
    149,168.26x = 205,854.48 × 81,187.93
  4. Step 4: Simplify right side
    149,168.26x = 16,712,897,677.21
  5. Step 5: Solve for x
    x = 16,712,897,677.21/149,168.26
  6. Step 6: Final answer
    x = 112,040.58

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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.