Home / 270,625.55-406,028.50-90,728.76

Finding the Fourth Proportional to 270,625.55, 406,028.50 and 90,728.76

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Solution

The fourth proportional to 270,625.55, 406,028.50 and 90,728.76 is: 136,123.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,625.55 : 406,028.50 = 90,728.76 : x
  2. Step 2: Convert to fraction form
    270,625.55/406,028.50 = 90,728.76/x
  3. Step 3: Cross multiply
    270,625.55x = 406,028.50 × 90,728.76
  4. Step 4: Simplify right side
    270,625.55x = 36,838,462,102.84
  5. Step 5: Solve for x
    x = 36,838,462,102.84/270,625.55
  6. Step 6: Final answer
    x = 136,123.37

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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.