Home / 159,604-220,254.18-87,982.45

Finding the Fourth Proportional to 159,604, 220,254.18 and 87,982.45

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Solution

The fourth proportional to 159,604, 220,254.18 and 87,982.45 is: 121,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,604 : 220,254.18 = 87,982.45 : x
  2. Step 2: Convert to fraction form
    159,604/220,254.18 = 87,982.45/x
  3. Step 3: Cross multiply
    159,604x = 220,254.18 × 87,982.45
  4. Step 4: Simplify right side
    159,604x = 19,378,502,379.14
  5. Step 5: Solve for x
    x = 19,378,502,379.14/159,604
  6. Step 6: Final answer
    x = 121,416.14

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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.