Home / 127,586.54-176,123.97-90,816.69

Finding the Fourth Proportional to 127,586.54, 176,123.97 and 90,816.69

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Solution

The fourth proportional to 127,586.54, 176,123.97 and 90,816.69 is: 125,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,586.54 : 176,123.97 = 90,816.69 : x
  2. Step 2: Convert to fraction form
    127,586.54/176,123.97 = 90,816.69/x
  3. Step 3: Cross multiply
    127,586.54x = 176,123.97 × 90,816.69
  4. Step 4: Simplify right side
    127,586.54x = 15,994,996,645.52
  5. Step 5: Solve for x
    x = 15,994,996,645.52/127,586.54
  6. Step 6: Final answer
    x = 125,365.86

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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.