Home / 119,686.84-165,107.10-91,343.32

Finding the Fourth Proportional to 119,686.84, 165,107.10 and 91,343.32

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Solution

The fourth proportional to 119,686.84, 165,107.10 and 91,343.32 is: 126,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,686.84 : 165,107.10 = 91,343.32 : x
  2. Step 2: Convert to fraction form
    119,686.84/165,107.10 = 91,343.32/x
  3. Step 3: Cross multiply
    119,686.84x = 165,107.10 × 91,343.32
  4. Step 4: Simplify right side
    119,686.84x = 15,081,430,669.57
  5. Step 5: Solve for x
    x = 15,081,430,669.57/119,686.84
  6. Step 6: Final answer
    x = 126,007.43

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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.