Home / 120,275.31-180,454.37-53,761.35

Finding the Fourth Proportional to 120,275.31, 180,454.37 and 53,761.35

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Solution

The fourth proportional to 120,275.31, 180,454.37 and 53,761.35 is: 80,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.31 : 180,454.37 = 53,761.35 : x
  2. Step 2: Convert to fraction form
    120,275.31/180,454.37 = 53,761.35/x
  3. Step 3: Cross multiply
    120,275.31x = 180,454.37 × 53,761.35
  4. Step 4: Simplify right side
    120,275.31x = 9,701,470,275.79
  5. Step 5: Solve for x
    x = 9,701,470,275.79/120,275.31
  6. Step 6: Final answer
    x = 80,660.53

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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.