Home / 93,883.05-129,515.13-83,138.85

Finding the Fourth Proportional to 93,883.05, 129,515.13 and 83,138.85

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Solution

The fourth proportional to 93,883.05, 129,515.13 and 83,138.85 is: 114,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,883.05 : 129,515.13 = 83,138.85 : x
  2. Step 2: Convert to fraction form
    93,883.05/129,515.13 = 83,138.85/x
  3. Step 3: Cross multiply
    93,883.05x = 129,515.13 × 83,138.85
  4. Step 4: Simplify right side
    93,883.05x = 10,767,738,965.80
  5. Step 5: Solve for x
    x = 10,767,738,965.80/93,883.05
  6. Step 6: Final answer
    x = 114,693.11

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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.