Home / 128,162.02-175,579.05-123,370.20

Finding the Fourth Proportional to 128,162.02, 175,579.05 and 123,370.20

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Solution

The fourth proportional to 128,162.02, 175,579.05 and 123,370.20 is: 169,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,162.02 : 175,579.05 = 123,370.20 : x
  2. Step 2: Convert to fraction form
    128,162.02/175,579.05 = 123,370.20/x
  3. Step 3: Cross multiply
    128,162.02x = 175,579.05 × 123,370.20
  4. Step 4: Simplify right side
    128,162.02x = 21,661,221,327.99
  5. Step 5: Solve for x
    x = 21,661,221,327.99/128,162.02
  6. Step 6: Final answer
    x = 169,014.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.