Home / 120,535.48-180,788.64-31,796.13

Finding the Fourth Proportional to 120,535.48, 180,788.64 and 31,796.13

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Solution

The fourth proportional to 120,535.48, 180,788.64 and 31,796.13 is: 47,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,535.48 : 180,788.64 = 31,796.13 : x
  2. Step 2: Convert to fraction form
    120,535.48/180,788.64 = 31,796.13/x
  3. Step 3: Cross multiply
    120,535.48x = 180,788.64 × 31,796.13
  4. Step 4: Simplify right side
    120,535.48x = 5,748,379,837.54
  5. Step 5: Solve for x
    x = 5,748,379,837.54/120,535.48
  6. Step 6: Final answer
    x = 47,690.35

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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.