Home / 106,505.53-147,026.55-91,911.66

Finding the Fourth Proportional to 106,505.53, 147,026.55 and 91,911.66

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Solution

The fourth proportional to 106,505.53, 147,026.55 and 91,911.66 is: 126,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,505.53 : 147,026.55 = 91,911.66 : x
  2. Step 2: Convert to fraction form
    106,505.53/147,026.55 = 91,911.66/x
  3. Step 3: Cross multiply
    106,505.53x = 147,026.55 × 91,911.66
  4. Step 4: Simplify right side
    106,505.53x = 13,513,454,274.57
  5. Step 5: Solve for x
    x = 13,513,454,274.57/106,505.53
  6. Step 6: Final answer
    x = 126,880.31

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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.