Home / 131,093.03-180,909.65-74,504.81

Finding the Fourth Proportional to 131,093.03, 180,909.65 and 74,504.81

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Solution

The fourth proportional to 131,093.03, 180,909.65 and 74,504.81 is: 102,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,093.03 : 180,909.65 = 74,504.81 : x
  2. Step 2: Convert to fraction form
    131,093.03/180,909.65 = 74,504.81/x
  3. Step 3: Cross multiply
    131,093.03x = 180,909.65 × 74,504.81
  4. Step 4: Simplify right side
    131,093.03x = 13,478,639,100.42
  5. Step 5: Solve for x
    x = 13,478,639,100.42/131,093.03
  6. Step 6: Final answer
    x = 102,817.36

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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.