Home / 151,356.90-208,873.96-83,374.18

Finding the Fourth Proportional to 151,356.90, 208,873.96 and 83,374.18

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Solution

The fourth proportional to 151,356.90, 208,873.96 and 83,374.18 is: 115,057.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,356.90 : 208,873.96 = 83,374.18 : x
  2. Step 2: Convert to fraction form
    151,356.90/208,873.96 = 83,374.18/x
  3. Step 3: Cross multiply
    151,356.90x = 208,873.96 × 83,374.18
  4. Step 4: Simplify right side
    151,356.90x = 17,414,695,138.35
  5. Step 5: Solve for x
    x = 17,414,695,138.35/151,356.90
  6. Step 6: Final answer
    x = 115,057.16

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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.