Home / 120,631.49-180,947.93-31,884.06

Finding the Fourth Proportional to 120,631.49, 180,947.93 and 31,884.06

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Solution

The fourth proportional to 120,631.49, 180,947.93 and 31,884.06 is: 47,826.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.49 : 180,947.93 = 31,884.06 : x
  2. Step 2: Convert to fraction form
    120,631.49/180,947.93 = 31,884.06/x
  3. Step 3: Cross multiply
    120,631.49x = 180,947.93 × 31,884.06
  4. Step 4: Simplify right side
    120,631.49x = 5,769,354,497.58
  5. Step 5: Solve for x
    x = 5,769,354,497.58/120,631.49
  6. Step 6: Final answer
    x = 47,826.27

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1.5x scale

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.