Home / 129,622.17-178,878.51-70,006.17

Finding the Fourth Proportional to 129,622.17, 178,878.51 and 70,006.17

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Solution

The fourth proportional to 129,622.17, 178,878.51 and 70,006.17 is: 96,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,622.17 : 178,878.51 = 70,006.17 : x
  2. Step 2: Convert to fraction form
    129,622.17/178,878.51 = 70,006.17/x
  3. Step 3: Cross multiply
    129,622.17x = 178,878.51 × 70,006.17
  4. Step 4: Simplify right side
    129,622.17x = 12,522,599,380.41
  5. Step 5: Solve for x
    x = 12,522,599,380.41/129,622.17
  6. Step 6: Final answer
    x = 96,608.47

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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.