Home / 116,140.10-160,276.47-68,384.66

Finding the Fourth Proportional to 116,140.10, 160,276.47 and 68,384.66

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Solution

The fourth proportional to 116,140.10, 160,276.47 and 68,384.66 is: 94,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,140.10 : 160,276.47 = 68,384.66 : x
  2. Step 2: Convert to fraction form
    116,140.10/160,276.47 = 68,384.66/x
  3. Step 3: Cross multiply
    116,140.10x = 160,276.47 × 68,384.66
  4. Step 4: Simplify right side
    116,140.10x = 10,960,451,906.95
  5. Step 5: Solve for x
    x = 10,960,451,906.95/116,140.10
  6. Step 6: Final answer
    x = 94,372.67

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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.