Home / 93,414.43-128,878.23-71,910.75

Finding the Fourth Proportional to 93,414.43, 128,878.23 and 71,910.75

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Solution

The fourth proportional to 93,414.43, 128,878.23 and 71,910.75 is: 99,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,414.43 : 128,878.23 = 71,910.75 : x
  2. Step 2: Convert to fraction form
    93,414.43/128,878.23 = 71,910.75/x
  3. Step 3: Cross multiply
    93,414.43x = 128,878.23 × 71,910.75
  4. Step 4: Simplify right side
    93,414.43x = 9,267,730,177.97
  5. Step 5: Solve for x
    x = 9,267,730,177.97/93,414.43
  6. Step 6: Final answer
    x = 99,210.91

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1.5x scale

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.