Home / 130,571.06-179,014.58-128,209.10

Finding the Fourth Proportional to 130,571.06, 179,014.58 and 128,209.10

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Solution

The fourth proportional to 130,571.06, 179,014.58 and 128,209.10 is: 175,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,571.06 : 179,014.58 = 128,209.10 : x
  2. Step 2: Convert to fraction form
    130,571.06/179,014.58 = 128,209.10/x
  3. Step 3: Cross multiply
    130,571.06x = 179,014.58 × 128,209.10
  4. Step 4: Simplify right side
    130,571.06x = 22,951,298,188.68
  5. Step 5: Solve for x
    x = 22,951,298,188.68/130,571.06
  6. Step 6: Final answer
    x = 175,776.30

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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.