Home / 117,890.11-162,689.73-64,176.07

Finding the Fourth Proportional to 117,890.11, 162,689.73 and 64,176.07

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Solution

The fourth proportional to 117,890.11, 162,689.73 and 64,176.07 is: 88,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,890.11 : 162,689.73 = 64,176.07 : x
  2. Step 2: Convert to fraction form
    117,890.11/162,689.73 = 64,176.07/x
  3. Step 3: Cross multiply
    117,890.11x = 162,689.73 × 64,176.07
  4. Step 4: Simplify right side
    117,890.11x = 10,440,787,500.76
  5. Step 5: Solve for x
    x = 10,440,787,500.76/117,890.11
  6. Step 6: Final answer
    x = 88,563.73

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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.