Home / 156,335.65-215,743.41-84,715.62

Finding the Fourth Proportional to 156,335.65, 215,743.41 and 84,715.62

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Solution

The fourth proportional to 156,335.65, 215,743.41 and 84,715.62 is: 116,907.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,335.65 : 215,743.41 = 84,715.62 : x
  2. Step 2: Convert to fraction form
    156,335.65/215,743.41 = 84,715.62/x
  3. Step 3: Cross multiply
    156,335.65x = 215,743.41 × 84,715.62
  4. Step 4: Simplify right side
    156,335.65x = 18,276,836,527.28
  5. Step 5: Solve for x
    x = 18,276,836,527.28/156,335.65
  6. Step 6: Final answer
    x = 116,907.67

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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.