Home / 151,899.84-209,612.34-91,490.04

Finding the Fourth Proportional to 151,899.84, 209,612.34 and 91,490.04

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Solution

The fourth proportional to 151,899.84, 209,612.34 and 91,490.04 is: 126,250.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,899.84 : 209,612.34 = 91,490.04 : x
  2. Step 2: Convert to fraction form
    151,899.84/209,612.34 = 91,490.04/x
  3. Step 3: Cross multiply
    151,899.84x = 209,612.34 × 91,490.04
  4. Step 4: Simplify right side
    151,899.84x = 19,177,441,371.09
  5. Step 5: Solve for x
    x = 19,177,441,371.09/151,899.84
  6. Step 6: Final answer
    x = 126,250.57

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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.