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Finding the Fourth Proportional to 159,450.03, 220,050.99 and 87,830.01

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Solution

The fourth proportional to 159,450.03, 220,050.99 and 87,830.01 is: 121,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,450.03 : 220,050.99 = 87,830.01 : x
  2. Step 2: Convert to fraction form
    159,450.03/220,050.99 = 87,830.01/x
  3. Step 3: Cross multiply
    159,450.03x = 220,050.99 × 87,830.01
  4. Step 4: Simplify right side
    159,450.03x = 19,327,080,652.21
  5. Step 5: Solve for x
    x = 19,327,080,652.21/159,450.03
  6. Step 6: Final answer
    x = 121,210.89

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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.