Home / 159,035.23-219,463.73-87,415.03

Finding the Fourth Proportional to 159,035.23, 219,463.73 and 87,415.03

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Solution

The fourth proportional to 159,035.23, 219,463.73 and 87,415.03 is: 120,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,035.23 : 219,463.73 = 87,415.03 : x
  2. Step 2: Convert to fraction form
    159,035.23/219,463.73 = 87,415.03/x
  3. Step 3: Cross multiply
    159,035.23x = 219,463.73 × 87,415.03
  4. Step 4: Simplify right side
    159,035.23x = 19,184,428,104.79
  5. Step 5: Solve for x
    x = 19,184,428,104.79/159,035.23
  6. Step 6: Final answer
    x = 120,630.05

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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.