Home / 151,243.94-208,647.33-90,710.52

Finding the Fourth Proportional to 151,243.94, 208,647.33 and 90,710.52

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Solution

The fourth proportional to 151,243.94, 208,647.33 and 90,710.52 is: 125,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,243.94 : 208,647.33 = 90,710.52 : x
  2. Step 2: Convert to fraction form
    151,243.94/208,647.33 = 90,710.52/x
  3. Step 3: Cross multiply
    151,243.94x = 208,647.33 × 90,710.52
  4. Step 4: Simplify right side
    151,243.94x = 18,926,507,800.91
  5. Step 5: Solve for x
    x = 18,926,507,800.91/151,243.94
  6. Step 6: Final answer
    x = 125,138.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.