Home / 151,579.49-209,181.15-83,599.20

Finding the Fourth Proportional to 151,579.49, 209,181.15 and 83,599.20

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Solution

The fourth proportional to 151,579.49, 209,181.15 and 83,599.20 is: 115,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,579.49 : 209,181.15 = 83,599.20 : x
  2. Step 2: Convert to fraction form
    151,579.49/209,181.15 = 83,599.20/x
  3. Step 3: Cross multiply
    151,579.49x = 209,181.15 × 83,599.20
  4. Step 4: Simplify right side
    151,579.49x = 17,487,376,795.08
  5. Step 5: Solve for x
    x = 17,487,376,795.08/151,579.49
  6. Step 6: Final answer
    x = 115,367.70

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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.