Home / 125,725.60-188,588.40-120,887.20

Finding the Fourth Proportional to 125,725.60, 188,588.40 and 120,887.20

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Solution

The fourth proportional to 125,725.60, 188,588.40 and 120,887.20 is: 181,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,725.60 : 188,588.40 = 120,887.20 : x
  2. Step 2: Convert to fraction form
    125,725.60/188,588.40 = 120,887.20/x
  3. Step 3: Cross multiply
    125,725.60x = 188,588.40 × 120,887.20
  4. Step 4: Simplify right side
    125,725.60x = 22,797,923,628.48
  5. Step 5: Solve for x
    x = 22,797,923,628.48/125,725.60
  6. Step 6: Final answer
    x = 181,330.80

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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.