Home / 129,097.50-178,153.44-70,954.98

Finding the Fourth Proportional to 129,097.50, 178,153.44 and 70,954.98

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Solution

The fourth proportional to 129,097.50, 178,153.44 and 70,954.98 is: 97,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,097.50 : 178,153.44 = 70,954.98 : x
  2. Step 2: Convert to fraction form
    129,097.50/178,153.44 = 70,954.98/x
  3. Step 3: Cross multiply
    129,097.50x = 178,153.44 × 70,954.98
  4. Step 4: Simplify right side
    129,097.50x = 12,640,873,772.13
  5. Step 5: Solve for x
    x = 12,640,873,772.13/129,097.50
  6. Step 6: Final answer
    x = 97,917.26

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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.