Home / 120,771.67-180,881.58-57,636.13

Finding the Fourth Proportional to 120,771.67, 180,881.58 and 57,636.13

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Solution

The fourth proportional to 120,771.67, 180,881.58 and 57,636.13 is: 86,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771.67 : 180,881.58 = 57,636.13 : x
  2. Step 2: Convert to fraction form
    120,771.67/180,881.58 = 57,636.13/x
  3. Step 3: Cross multiply
    120,771.67x = 180,881.58 × 57,636.13
  4. Step 4: Simplify right side
    120,771.67x = 10,425,314,259.49
  5. Step 5: Solve for x
    x = 10,425,314,259.49/120,771.67
  6. Step 6: Final answer
    x = 86,322.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.