Home / 121,289.16-182,049.30-87,588.84

Finding the Fourth Proportional to 121,289.16, 182,049.30 and 87,588.84

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Solution

The fourth proportional to 121,289.16, 182,049.30 and 87,588.84 is: 131,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,289.16 : 182,049.30 = 87,588.84 : x
  2. Step 2: Convert to fraction form
    121,289.16/182,049.30 = 87,588.84/x
  3. Step 3: Cross multiply
    121,289.16x = 182,049.30 × 87,588.84
  4. Step 4: Simplify right side
    121,289.16x = 15,945,487,009.81
  5. Step 5: Solve for x
    x = 15,945,487,009.81/121,289.16
  6. Step 6: Final answer
    x = 131,466.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.