Home / 123,124.28-169,911.14-66,535.65

Finding the Fourth Proportional to 123,124.28, 169,911.14 and 66,535.65

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Solution

The fourth proportional to 123,124.28, 169,911.14 and 66,535.65 is: 91,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,124.28 : 169,911.14 = 66,535.65 : x
  2. Step 2: Convert to fraction form
    123,124.28/169,911.14 = 66,535.65/x
  3. Step 3: Cross multiply
    123,124.28x = 169,911.14 × 66,535.65
  4. Step 4: Simplify right side
    123,124.28x = 11,305,147,809.46
  5. Step 5: Solve for x
    x = 11,305,147,809.46/123,124.28
  6. Step 6: Final answer
    x = 91,819.00

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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.