Home / 151,036.89-208,352.39-90,578.49

Finding the Fourth Proportional to 151,036.89, 208,352.39 and 90,578.49

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Solution

The fourth proportional to 151,036.89, 208,352.39 and 90,578.49 is: 124,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,036.89 : 208,352.39 = 90,578.49 : x
  2. Step 2: Convert to fraction form
    151,036.89/208,352.39 = 90,578.49/x
  3. Step 3: Cross multiply
    151,036.89x = 208,352.39 × 90,578.49
  4. Step 4: Simplify right side
    151,036.89x = 18,872,244,421.20
  5. Step 5: Solve for x
    x = 18,872,244,421.20/151,036.89
  6. Step 6: Final answer
    x = 124,951.22

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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.