Home / 120,632.40-180,947.48-30,675.31

Finding the Fourth Proportional to 120,632.40, 180,947.48 and 30,675.31

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Solution

The fourth proportional to 120,632.40, 180,947.48 and 30,675.31 is: 46,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,632.40 : 180,947.48 = 30,675.31 : x
  2. Step 2: Convert to fraction form
    120,632.40/180,947.48 = 30,675.31/x
  3. Step 3: Cross multiply
    120,632.40x = 180,947.48 × 30,675.31
  4. Step 4: Simplify right side
    120,632.40x = 5,550,619,436.97
  5. Step 5: Solve for x
    x = 5,550,619,436.97/120,632.40
  6. Step 6: Final answer
    x = 46,012.68

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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.