Home / 93,122.43-139,683.65-76,639.83

Finding the Fourth Proportional to 93,122.43, 139,683.65 and 76,639.83

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Solution

The fourth proportional to 93,122.43, 139,683.65 and 76,639.83 is: 114,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,122.43 : 139,683.65 = 76,639.83 : x
  2. Step 2: Convert to fraction form
    93,122.43/139,683.65 = 76,639.83/x
  3. Step 3: Cross multiply
    93,122.43x = 139,683.65 × 76,639.83
  4. Step 4: Simplify right side
    93,122.43x = 10,705,331,189.78
  5. Step 5: Solve for x
    x = 10,705,331,189.78/93,122.43
  6. Step 6: Final answer
    x = 114,959.75

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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.