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Finding the Fourth Proportional to 158,577.48, 218,842.02 and 90,579.96

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Solution

The fourth proportional to 158,577.48, 218,842.02 and 90,579.96 is: 125,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,577.48 : 218,842.02 = 90,579.96 : x
  2. Step 2: Convert to fraction form
    158,577.48/218,842.02 = 90,579.96/x
  3. Step 3: Cross multiply
    158,577.48x = 218,842.02 × 90,579.96
  4. Step 4: Simplify right side
    158,577.48x = 19,822,701,417.92
  5. Step 5: Solve for x
    x = 19,822,701,417.92/158,577.48
  6. Step 6: Final answer
    x = 125,003.26

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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.