Home / 117,890.28-162,690.66-64,176.84

Finding the Fourth Proportional to 117,890.28, 162,690.66 and 64,176.84

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Solution

The fourth proportional to 117,890.28, 162,690.66 and 64,176.84 is: 88,565.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,890.28 : 162,690.66 = 64,176.84 : x
  2. Step 2: Convert to fraction form
    117,890.28/162,690.66 = 64,176.84/x
  3. Step 3: Cross multiply
    117,890.28x = 162,690.66 × 64,176.84
  4. Step 4: Simplify right side
    117,890.28x = 10,440,972,456.31
  5. Step 5: Solve for x
    x = 10,440,972,456.31/117,890.28
  6. Step 6: Final answer
    x = 88,565.17

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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.