Home / 106,505.03-147,025.86-91,911.16

Finding the Fourth Proportional to 106,505.03, 147,025.86 and 91,911.16

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Solution

The fourth proportional to 106,505.03, 147,025.86 and 91,911.16 is: 126,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,505.03 : 147,025.86 = 91,911.16 : x
  2. Step 2: Convert to fraction form
    106,505.03/147,025.86 = 91,911.16/x
  3. Step 3: Cross multiply
    106,505.03x = 147,025.86 × 91,911.16
  4. Step 4: Simplify right side
    106,505.03x = 13,513,317,342.60
  5. Step 5: Solve for x
    x = 13,513,317,342.60/106,505.03
  6. Step 6: Final answer
    x = 126,879.62

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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.