Home / 275,458.12-413,191.73-85,923.59

Finding the Fourth Proportional to 275,458.12, 413,191.73 and 85,923.59

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Solution

The fourth proportional to 275,458.12, 413,191.73 and 85,923.59 is: 128,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,458.12 : 413,191.73 = 85,923.59 : x
  2. Step 2: Convert to fraction form
    275,458.12/413,191.73 = 85,923.59/x
  3. Step 3: Cross multiply
    275,458.12x = 413,191.73 × 85,923.59
  4. Step 4: Simplify right side
    275,458.12x = 35,502,914,948.76
  5. Step 5: Solve for x
    x = 35,502,914,948.76/275,458.12
  6. Step 6: Final answer
    x = 128,886.80

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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.