Home / 169,320.90-253,638.63-80,660.10

Finding the Fourth Proportional to 169,320.90, 253,638.63 and 80,660.10

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Solution

The fourth proportional to 169,320.90, 253,638.63 and 80,660.10 is: 120,826.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,320.90 : 253,638.63 = 80,660.10 : x
  2. Step 2: Convert to fraction form
    169,320.90/253,638.63 = 80,660.10/x
  3. Step 3: Cross multiply
    169,320.90x = 253,638.63 × 80,660.10
  4. Step 4: Simplify right side
    169,320.90x = 20,458,517,259.66
  5. Step 5: Solve for x
    x = 20,458,517,259.66/169,320.90
  6. Step 6: Final answer
    x = 120,826.89

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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.