Home / 129,006.54-178,025.58-71,644.10

Finding the Fourth Proportional to 129,006.54, 178,025.58 and 71,644.10

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Solution

The fourth proportional to 129,006.54, 178,025.58 and 71,644.10 is: 98,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,006.54 : 178,025.58 = 71,644.10 : x
  2. Step 2: Convert to fraction form
    129,006.54/178,025.58 = 71,644.10/x
  3. Step 3: Cross multiply
    129,006.54x = 178,025.58 × 71,644.10
  4. Step 4: Simplify right side
    129,006.54x = 12,754,481,565.95
  5. Step 5: Solve for x
    x = 12,754,481,565.95/129,006.54
  6. Step 6: Final answer
    x = 98,866.94

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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.