Home / 129,172.57-193,802.60-58,087.78

Finding the Fourth Proportional to 129,172.57, 193,802.60 and 58,087.78

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Solution

The fourth proportional to 129,172.57, 193,802.60 and 58,087.78 is: 87,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,172.57 : 193,802.60 = 58,087.78 : x
  2. Step 2: Convert to fraction form
    129,172.57/193,802.60 = 58,087.78/x
  3. Step 3: Cross multiply
    129,172.57x = 193,802.60 × 58,087.78
  4. Step 4: Simplify right side
    129,172.57x = 11,257,562,792.23
  5. Step 5: Solve for x
    x = 11,257,562,792.23/129,172.57
  6. Step 6: Final answer
    x = 87,151.34

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1.5x scale

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.