Home / 218,582.55-301,638.03-123,087.20

Finding the Fourth Proportional to 218,582.55, 301,638.03 and 123,087.20

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Solution

The fourth proportional to 218,582.55, 301,638.03 and 123,087.20 is: 169,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,582.55 : 301,638.03 = 123,087.20 : x
  2. Step 2: Convert to fraction form
    218,582.55/301,638.03 = 123,087.20/x
  3. Step 3: Cross multiply
    218,582.55x = 301,638.03 × 123,087.20
  4. Step 4: Simplify right side
    218,582.55x = 37,127,778,556.45
  5. Step 5: Solve for x
    x = 37,127,778,556.45/218,582.55
  6. Step 6: Final answer
    x = 169,857.01

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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.