Home / 156,639.59-234,981.26-77,732.63

Finding the Fourth Proportional to 156,639.59, 234,981.26 and 77,732.63

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Solution

The fourth proportional to 156,639.59, 234,981.26 and 77,732.63 is: 116,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639.59 : 234,981.26 = 77,732.63 : x
  2. Step 2: Convert to fraction form
    156,639.59/234,981.26 = 77,732.63/x
  3. Step 3: Cross multiply
    156,639.59x = 234,981.26 × 77,732.63
  4. Step 4: Simplify right side
    156,639.59x = 18,265,709,776.94
  5. Step 5: Solve for x
    x = 18,265,709,776.94/156,639.59
  6. Step 6: Final answer
    x = 116,609.79

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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.